Question

(x-2)(x+5)+(x+1)(x+7)

Answer 1

2x² + 11x + 17

Explanation:

(x - 2)(x + 5) + (x + 1)(x + 7) ← expand the pairs of factors using FOIL

= x² + 3x - 10 + x² + 8x + 7 ← collect like terms

= 2x² + 11x + 17