Question

calcule:
a) (x-8)²
b) (x+5)²
c) (x-7)(x-7)
d) (x-6)²
e) (x+9)²​

Answer 1

Explicação passo-a-passo:

(x-8)²= x²- 2.x.8+8² = x²- 16x+ 64

b) (x+5)²= x²+2.x.5+5²= x²+ 10x+ 25

c) (x-7)²= x²-2.x.7+7²= x²- 14x+ 49

d) (x-6)²= x²-2.x.6+6²= x²-12x+36

e) (x+9)²= x²+2.x.9+ 9²= x²+ 18x+ 81