Question

calcule as potencias abaixo: a) 4² b) (x+5)² c)(y+2)² d) (-7)²

Answer 1

a) 4.4= 16
b) 5.5=25

c) 2.2= 4
d) -7. -7= 49

Answer 2

a) 4×4=16

b)x²+5²= x²+25

c)y²+2²=y²+4

d)-7×(-7)=49