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Simplifying
4x2 + -9 = 319
Reorder the terms:
-9 + 4x2 = 319
Solving
-9 + 4x2 = 319
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '9' to each side of the equation.
-9 + 9 + 4x2 = 319 + 9
Combine like terms: -9 + 9 = 0
0 + 4x2 = 319 + 9
4x2 = 319 + 9
Combine like terms: 319 + 9 = 328
4x2 = 328
Divide each side by '4'.
x2 = 82
Simplifying
x2 = 82
Take the square root of each side:
x = {-9.055385138, 9.055385138}
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