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Simplifying
16x2 + -256 = 9
Reorder the terms:
-256 + 16x2 = 9
Solving
-256 + 16x2 = 9
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '256' to each side of the equation.
-256 + 256 + 16x2 = 9 + 256
Combine like terms: -256 + 256 = 0
0 + 16x2 = 9 + 256
16x2 = 9 + 256
Combine like terms: 9 + 256 = 265
16x2 = 265
Divide each side by '16'.
x2 = 16.5625
Simplifying
x2 = 16.5625
Take the square root of each side:
x = {-4.069705149, 4.069705149}
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