Question

(x+2).(x-7)+(x-5).(x+3)

Answer 1

Olá

(x+2).(x-7)+(x-5).(x+3)
x²-7x+2x-14+x²+3x-5x-15
x²+x²-7x+2x-14+3x-5x-15
2x²-5x+3x-5x-14-15
2x²-2x-5x-29
2x²-7x-29 <---

Answer 2

(x+2)(x-7) +(x-5)(x+3)
(X^2-7x+2x-14)+(x^2 +3x-5x-15)
(X^2 -5x -14)+(x^2-2x -15)
2x^2 -7x -29