Question

(x+2)x(x-2)
(x+1)x(x-1)
(x+6)x(x-6)
(x-7)x(x+7)
(x-3)x(x+3)
(2+y)x(2-y)
​

Answer 1

Respuesta:

(x+2)*(x-2)

x^2 - 2x + 2x - 4

x^2 - 4

(x+1)*(x-1)

x^2 - x + x - 1

x^2 - 1

(x+6)*(x-6)

x^2 - 6x + 6x - 36

x^2 - 36

(x-7)*(x+7)

x^2 + 7x - 7x - 49

x^2 - 49

(x-3)*(x+3)

x^2 + 3x - 3x - 9

x^2 - 9

(2+y)*(2-y)

​4 - 2y + 2y - y^2

4 - y^2

-y^2 + 4

Explicación paso a paso: