Question

cat face (x+2)(x-2) ​

Answer 1

Răspuns:

(x+2)(x-2) ​=

x·x-2x+2x-4=

x²-2x+2x-4=

x²-4

Answer 2

Explicație pas cu pas:

$\bf \big(x + 2 \big) \cdot\big(x - 2 \big) =$

$\bf x^{2}- 2x + 2x - 2^{2} =$

$\red{ \underline{\bf x^{2}- 4}}$