Question

Help please! Could someone walk me through this one : ) (3x =1)^3/2 = 64

Answer 1

Is this 3x-1 or 3x+1 on the inside of the parentheses? (or neither?)

Answer 2

oops.. +

Answer 3

(3x+1)^3/2=64
3x+1=64^2/3=16
3x=15
x=5

Answer 4

I can see how you did it in my head but on paper what do I do with the 3/2?

Answer 5

You raise both sides of the equation to 2/3 to cancel it out on the left.

Answer 6

ok : )

Answer 7

p.s. Thanks so much!!