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Question 345956: cbrt(X)-5=3
Answer by haileytucki(390)   (Show Source):
You can put this solution on YOUR website! ~3:(X)-5=3 the ~ symbolizes the square root
Since -5 does not contain the variable to solve for, move it to the right-hand side of the equation by adding 5 to both sides.
~3:(X)=5+3
Add 3 to 5 to get 8.
~3:(X)=8
To remove the radical on the left-hand side of the equation, cube both sides of the equation.
(~3:(X))^(3)=(8)^(3)
Simplify the left-hand side of the equation.
X=(8)^(3)
Expand the exponent (3) to the expression.
X=(8^(3))
Cubing a number is the same as multiplying the number by itself 3 times (8*8*8). In this case, 8 cubed is 512.
X=(512)
Remove the parentheses around the expression 512.
X=512
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