Question

(x + 1)(x + 2) + (x + 2)(x + 3) - 2(x - 5)(x - 2) - x​

Answer 1

Respuesta:

(x + 1)(x + 2) + (x + 2)(x + 3) - 2(x - 5)(x - 2) - x

(x²+3x+2)+(x²+5x+6)-2(x²-7x-10)-x

x²+3x+2+x²+5x+6-2x²+7x+10-x

15x-x+18

14x+18