3x^2-15=60

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Solution for 3x^2-15=60 equation: 


Simplifying
3x2 + -15 = 60

Reorder the terms:
-15 + 3x2 = 60

Solving
-15 + 3x2 = 60

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '15' to each side of the equation.
-15 + 15 + 3x2 = 60 + 15

Combine like terms: -15 + 15 = 0
0 + 3x2 = 60 + 15
3x2 = 60 + 15

Combine like terms: 60 + 15 = 75
3x2 = 75

Divide each side by '3'.
x2 = 25

Simplifying
x2 = 25

Take the square root of each side:
x = {-5, 5}

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