Question

(x + 5)(x + 4) - (x + 10)(x - 1)

Answer 1

Respuesta:

30

Explicación paso a paso:

solucion

(x + 5)(x + 4) - (x + 10)(x - 1)

multiplicando

$(x^{2} +4x+5x+20)-(x^{2} -x+10x-10)\\sumando,restando\\(x^{2} +9x+20)-(x^{2} +9x-10)\\x^{2} +9x+20-x^{2} -9x+10\\sumando, restando\\30\\gracias$