Question

Quanto vale x

a)x²= 9

b)x²= 25

c)x²=49

d)x²=81​

Answer 1

Resposta:

a)x²= 9

$x=\sqrt{9}=3$

b)x²= 25

$x=\sqrt{25}=5$

c)x²=49

$x=\sqrt{49}=7$

d)x²=81​

$x=\sqrt{81}=9$