Question

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

Answer 1

Respuesta:

21x - 12

Explicación paso a paso:

(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 + 14x - 20 - x

2x² + 8x + 8 - 2x² + 13x - 20

21x - 12