Question

Factorize
(a) x^2+ 9x + 20
(b) 3x^2– 10x + 8.

Answer 1

Answer:

1)Use the sum-product pattern

2+9+20

2+5+4+20

2)

3x2 + 10x + 8 factors to (3x + 4)(x + 2). In general, to factor a quadratic expression of the form ax2 + bx + c to a product of binomials (A + B)(C +...

Answer 2

Answer:

Answer ⬇

(i)- x² + 9x + 20

=> x² + 5x + 4x + 20

=> x(x + 5) + 4(x + 5)

=> (x + 4) (x + 5)

(ii)- 3x² - 10x + 8

=> 3x² - 6x - 4x + 8

=> 3x(x - 2) - 4(x - 2)

=> (3x - 4) (x - 2)

Thanks..