4x^2-27=9

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Solution for 4x^2-27=9 equation: 


Simplifying
4x2 + -27 = 9

Reorder the terms:
-27 + 4x2 = 9

Solving
-27 + 4x2 = 9

Solving for variable 'x'.

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

Add '27' to each side of the equation.
-27 + 27 + 4x2 = 9 + 27

Combine like terms: -27 + 27 = 0
0 + 4x2 = 9 + 27
4x2 = 9 + 27

Combine like terms: 9 + 27 = 36
4x2 = 36

Divide each side by '4'.
x2 = 9

Simplifying
x2 = 9

Take the square root of each side:
x = {-3, 3}

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