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Simplifying
5x2 + -16 = 9
Reorder the terms:
-16 + 5x2 = 9
Solving
-16 + 5x2 = 9
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '16' to each side of the equation.
-16 + 16 + 5x2 = 9 + 16
Combine like terms: -16 + 16 = 0
0 + 5x2 = 9 + 16
5x2 = 9 + 16
Combine like terms: 9 + 16 = 25
5x2 = 25
Divide each side by '5'.
x2 = 5
Simplifying
x2 = 5
Take the square root of each side:
x = {-2.236067978, 2.236067978}
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