Q2 of 108 Page 40

Solve the following equations by factorization method:
x² + 8x + 7

On factorizing the above equation,

x² + 8x + 7 = 0

x² + 7x + x + 7 = 0

x(x + 7) + 1(x + 7) = 0

(x + 7) (x + 1) = 0

Solving the first part,

x + 7= 0

x = -7

Solving the second part,

x + 1 = 0

x = -1

Solve the following equations by factorization method:

100x² – 20x + 1 = 0

Solve the following equations by factorization method:

4x² – 4a²x + (a⁴ – b⁴) = 0

Questions · 108

3. Polynomials

1 1 1 1 1 1 2 2 2 2 2 2 3 1 1 1 1 2 2 2 3 3 3 4 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 1 1 1 1 1 1 1 2 2 2 2 2 2 3 4 5 1 1 1 1 1 1 2 2 2 2 2 2 3 3 3 4 5 1 1 1 1 1 2 3 4 5 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 19 19 19 20 21 21 22 23

Solve the following equations by factorization method:x2 + 8x + 7