Question

a) (x + 2)(x + 5) d) (x-6)(x-4) b) (x-3)(x+6) e) (a 1)(a + 2)​

Answer 1

Respuesta:

Explicación paso a paso:

(x + 2) (x + 5) = (x)(x) + (+2 + 5)x + (+2)(+5)

(x +2)(x+5) = x^2 + 7x +10

(x-6)(x-4) = (x)(x)+(- 6 -4)x + (-6)(-4)

(x - 6)(x - 4) = x^2 - 10x+ 24

(x - 3)(x + 6) = (x)(x)+(-3 + 6)x +(-3)(+6)

(x - 3)(x+ 6) = x^2+3x-18

(a + 1)(a +2) = (a)(a)+(+1 +2)a + (+1)(2)

(a+1)(a+2) = a^2+3a+2