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Simplifying
4(-1x2 + 4) + 2 = 0
Reorder the terms:
4(4 + -1x2) + 2 = 0
(4 * 4 + -1x2 * 4) + 2 = 0
(16 + -4x2) + 2 = 0
Reorder the terms:
16 + 2 + -4x2 = 0
Combine like terms: 16 + 2 = 18
18 + -4x2 = 0
Solving
18 + -4x2 = 0
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-18' to each side of the equation.
18 + -18 + -4x2 = 0 + -18
Combine like terms: 18 + -18 = 0
0 + -4x2 = 0 + -18
-4x2 = 0 + -18
Combine like terms: 0 + -18 = -18
-4x2 = -18
Divide each side by '-4'.
x2 = 4.5
Simplifying
x2 = 4.5
Take the square root of each side:
x = {-2.121320344, 2.121320344}
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