Class 8 math solution wbbse

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Lets Work Out 1.1 Question 1. Let’s see the pictures in the graph paper below and find the area of the figures and note it down. Answer: Since pictures are laid on a graph paper, a bar in graph paper has a measure of 1 unit (Here, 1 bar = 1 cm) and is square in shape. Using the information that, 1 bar = 1 cm and square in shape. For shape 1: We need to find the number of complete smallest square regions enclosed by the figure. Complete smallest square regions is equal to 1 bar of the graph. Note that, in the figure There are 6 bars enclosed by the figure. These 6 bars are completely enclosed within the boundary of the figure. ⇒ There are 6 number of complete smallest square regions enclosed by the figure. We need to find number of half of smallest square regions enclosed by the figure. As we already know that, 6 complete square regions are enclosed by the figure 1. There are no other regions enclosed by the figure other than these 6 squares. ⇒ There are 0 number of half of smallest square regions enclosed by the figure. We need to find number of more than half of smallest square regions enclosed by the figure. There are no square (be it half or more than half) regions enclosed by the figure than the 6 complete square regions. ⇒ There are 0 number of more than half of smallest square regions enclosed by the figure. We need to find number of less than half of smallest square regions enclosed by the figure. There are no square (be it half, more than half or less than half) re...

Chapter 13 Solution West Bengal Board : Class 8 Mathematics West Bengal Board Class 8 Math Solution full Exercise 13.1, 13.2 by Experts. Here in this page WB Board Class 8 Student can find Ganit Prabha Class 8 Math Chapter 13 বীজগাণিতিক সংখ্যামালার উৎপাদকে বিশ্লেষণ Exercise 13.1, 13.2 Solution. Board WB Board Class 8 (Eight ) Subject Mathematics Book Name Ganit Prabha Chapter 13 Chapter Page Number on Book 1 27 and 131 13.1 Solution (1) (x 2 – 40x – 12y) = x 2 – 43x + 3x – 129 = x (x – 43) + 3 (x – 43) = (x + 3) (x – 43) ∴ P = 3 q = – 43 m 2 + 19m + 60 = m 2 + 150m + 4m + 60 = m (m + 15) + 4 (m + 15) = (m + 4) (m + 15) x 2 – x – 6 = x 2 – 3x + 2x – 6 = x (x – 3) + 2 (x – 3) = (x – 3) (x + 3) p = – 3; q = 2 (a + b) 2 – 4 (a + b) – 12 a + b = x Let, x 2 – 4x – 12 = x 2 – 6x + 2x – 12 = x (x – 6) + 2(x – 6) = (x – 6) (x + 2) = (a + b – 6) (a + b + 2) p = -6; q = 2 (2) (i) (a + b) – 5 (a + b) – 6 Let, a + b = x x 2 – 5x – 6 = x 2 – 6x + x – 6 = x (x – 6) + 1(x – 6) = (x + 1) (x – 6) = (a + b + 1) (a + b – 6) (ii) (x 2 – 2x) 2 + 5 (x 2 – 2x) – 36 Let, x 2 – 2x = a a 2 – 5a – 36 = a 2 – 9a + 4a – 36 = a (a – 9) + 4 (a – 9) = (a + 4) (a – 9) = (x 2 – 2x + 4) (x 2 – 2x – 9) (iii) (p 2 – 3q 2) 2 – 16 (p 2 – 3q 2) + 63 Let, (p 2 – 3q 2) = a a 2 – 16a + 63 = a 2 – 9a – 7a + 63 = a (a – 9) – 7 (a – 9) = (a – 7) (a – 9) = (p 2 – 3q 2 – 7) (p 2 – 3q 2 – 9) (iv) a 4 + 4a 2 – 5 =a 2 (a 2 + 4 – 5) = a 2 (a 2 – 1) = a 4 – a 2 (v) x 2y 2 + 23xy – 420 = (xy) 2 + (35 – 12) xy – 420 = (xy) 2 + ...

Chapter 14 Solution West Bengal Board : Class 8 Mathematics West Bengal Board Class 8 Math Solution full Chapter 14 by Experts. Here in this page WB Board Class 8 Student can find Ganit Prabha Class 8 Math Chapter 14 বীজগাণিতিক সংখ্যামালার গ.সা.গু ও ল.সা.গু (HCF and LCM of Algebraic Numbers) Exercise 14 Solution. Board WB Board Class 8 (Eight) Subject Mathematics Book Name Ganit Prabha Chapter 14 Chapter Page Number on Book 136 Exercise 14 WB Board Class 8 Math Solution Chapter 14 by our Math Sir. Hope above Solution for West Bengal Board Class 8 Math will help you to practice Chapter number 14. For any problem during the time of practice, please comment us at below comment box. Our Math Sir will try to clear your doubts as soon as possible.

Introduction In class VII you have learned about the formation of linear equations of one variable and their solutions. Formation of equations, some useful information about equations, and rules of solving an equation have been discussed in detail in the chapter of ‘equation 1 in the book for class VII. In this chapter, our aim is to deal with a little harder problems and also to discuss some special techniques for solving algebraic equations involving one variable. Method of Transportation In an equation, usually, there are some terms on the left-hand side of the ‘=’ sign and also there are some terms on the right-hand side of the sign. If any term is taken from the left-hand side to the right-hand side or from the right-hand side to the left-hand side then a change of sign of the respective term takes place. This is called the method of transportation. Example 18 Solve: \(\frac\) Now, the left-hand side is the product of two quantities. Its value will be equal to zero if at least one of them is zero’. Clearly, the second factor cannot be equal to zero because nothing is known about the values of a, b, and c. Hence, x + a 2 + b 2 + c 2 = 0 or, x = – (a 2 + b 2 + c 2) The required solution is x = – (a 2+ b 2 + c 2) Example 21 The sum of the digits of a number of two digits is 10. if the digit in the units’ place is 4 times the digit in the tens’ place, find the number. Solution: Let, the digit in the tens place be x. Then the digit in the units place = 4x ∴ The number = 10...

West Bengal Board Class 8 Solution 2023 – 24 West Bengal Class 8 Solution: Here in the Page We Published Latest Edition West Bengal State Board Class 8 Solution. Class VIII Solution West Bengal State Board Books – Bengali, English, Math, History, Geography & Science. Board West Bengal State Board Class VIII (Eight) Book Name Blossoms (English), Amader Prithibi (Bengali), Atit O Aityaja (History), Ganit Prabha (Math), Poribesh o Bigyan (Science) Solution West Bengal Board Class 8 Textbook Solution • West Bengal Board Class 8 English Solution • West Bengal Board Class 8 Math Solution • West Bengal Board Class 8 Geography Solution • West Bengal Board Class 8 Bengali Solution English Medium • West Bengal State English Medium Solution: Class 8 Science • West Bengal Class 8 English Medium History Textbook Solution • NCERT • CBSE • ICSE • AP SSC • Andhra Pradesh Intermediate • MSBSHSE (Maharashtra Board) • KSEEB (Karnataka Board) • GSEB (Gujarat Board) • WBBSE (West Bengal 10th Board) • WBCHSE (West Bengal 12th Board) • SEBA (Assam Board) • AHSEC (Assam 12th Board) • PSEB (Punjab Board) • RBSE (Rajasthan Board) • Samacheer Kalvi (Tamilnadu Board) • BSEB (Bihar Board) • TBSE (Tripura Board) • UPMSP (UP Board) • NBSE (Nagaland Board) • National Talent Exam (NTSE) Sponsored