Math help??

Question

solve the equation cubed root of 11-2t minus cubed root
of -1-5t=0

Answer 1

cuberoot(11-2t) - cuberoot(-1-5t) = 0

move the second half of the equation to the other side (by adding cuberoot(-1-5t) to both sides):
cuberoot(11-2t) = cuberoot(-1-5t)

now you can take each side of the equation to the 3rd power to remove the cuberoot (whenever you do something to one side of the equation, you have to do it to the other side for it to stay equal. (This is how you can manipulate equations)

[cuberoot(11-2t)]^3 = [cuberoot(-1-5t)]^3
11 - 2t = -1 - 5t

add 5t to both sides and subtract 11 from both sides:
3t = -12

divide both sides by 3:
t = -4

Answer 2

Rewrite it as
(11-2t)^(1/3) = (-1-5t)^1/3.
Now cube both sides:
11-2t = -1-5t
-3t = 12
t = -4.