4x^2+4=9

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Solution for 4x^2+4=9 equation:


Simplifying
4x2 + 4 = 9

Reorder the terms:
4 + 4x2 = 9

Solving
4 + 4x2 = 9

Solving for variable 'x'.

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

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

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

Combine like terms: 9 + -4 = 5
4x2 = 5

Divide each side by '4'.
x2 = 1.25

Simplifying
x2 = 1.25

Take the square root of each side:
x = {-1.118033989, 1.118033989}

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