Question

Factorised a)2y^3-4y^2-2y+4
B)2x^2+7x+3

Answer 1

$A\\ {2y}^{3} - 4 {y}^{2} - 2y + 4 \\ = 2 {y}^{2} (y - 2) - 2(y - 2) \\ = (2 {y}^{2} - 2)(y - 2) \\B \\ 2x {}^{2} + 7x + 3 \\= 2 {x}^{2} + 6x + x + 3 \\ = 2x(x + 3) + 1(x + 3) \\ =( 2x + 1)(x + 3)$