Question

Solve the following:

2(x+5)^3/4=128


The answer is 251 I just need to know how to solve to get that.

Answer 1

`2(x+5)^(3/4) = 128` Divide 2 on both sides

`(x+5)^(3/4)=64` Multiply an exponent of 4/3 on both sides

`((x+5)^(3/4))^(4/3)=(64)^(4/3)`

x + 5 = 256 Subtract 5 on both sides

x = 251