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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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