Question

Solve the following quadratic equations by
factorization method :
(i) 3x^2 = 2x + 8 (ii) 2x^2 + 5x + 2 = 0.
(iii) x^2 - 5x - 36 =0 (iv) (2x + 3)^2 = 16​

Answer 1

3x²-2x-8

3x²-6x+4x-8

3x(x-2)+4(x-2)

(x-2)(3x+4)

x=2 x= -4/3

2x²+5x+2

2x²+4x+x+2

2x(x+2)+1(x+2)

(x+2)(2x+1)

x= -2 x= -1/2