Question

Factorise

x2 -7x + 10;
2x2 +7x +3

Answer 1

Answer:

${x}^{2} - 7x + 10 \\ = {x}^{2} - 5x - 2x + 10 \\ = x(x - 5) - 2(x - 5) \\ = (x - 5)(x - 2)$

$2 {x}^{2} + 7x + 3 \\ = 2 {x}^{2} + 6x + x + 3 \\ = 2x(x + 3) + 1(x + 3) \\ = (x + 3)(2x + 1)$