Question

the factors of following quadratic expressions: (i)2x²+5x+2

Answer 1

2x^2 + 5x +2
= 2x^2 + ( 4+1) x +2
= 2 x^2 + 4x +x+2
2x ( x + 2) +1 (x+2)
(x+2)(2x+1)