Question

Qual o valor de x? a) ✓x=4

Answer 1

Resposta:

A) sqrt X=4 longrightarrow>X = 4 ^ 2 -> X = 16

B) sqrt X=7 longrightarrow X=7 ^ 2--->X=49

C) sqrt X=13---...>X=13 ^ 2--->X=169

D) sqrt X X=20-..>X = 20 ^ 2 X = 400

E) ^ 2 sqrt X=5--->(^ 2 sqrt X)^ 2 =5^ 2 underline * ^2 = 5 ^ 3

---> X = 12E

F) 4. √ X = 3√X = (3/4) ---> X =

(3/4) ^ 2-->X=9/16

G) 3sqrt(x)=-2---->X=(-2)^ 2 --->X=-8

H 5sqrt(x) = - 1 > √ X = -1/5 --> X = (-1/5)2 ---> X=1/25