Question

calcule o valor de x:
a) √x + 3=7
b)2√x =12
c)√x+1=7

Answer 1

A) Vx+3=7
Vx=7-3
Vx=4
x=16

B)2Vx=12
Vx=12/2
Vx=6
x=36

C)Vx+1=7
Vx=7-1
Vx=6
x=36
espero ter ajudado!!!

Answer 2

√x + 3 = 7
√x = 7 - 3
√x = 4
x = 4²
x = 16

2√x = 12
√x = 12/2
√x = 6
x = 6²
x = 36

√x + 1 = 7
√x = 7 - 1
√x = 6
x = 6²
x = 36