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Simplifying
(5x2 + 4x + -7) + (5x2 + -4x + 7) = 0
Reorder the terms:
(-7 + 4x + 5x2) + (5x2 + -4x + 7) = 0
Remove parenthesis around (-7 + 4x + 5x2)
-7 + 4x + 5x2 + (5x2 + -4x + 7) = 0
Reorder the terms:
-7 + 4x + 5x2 + (7 + -4x + 5x2) = 0
Remove parenthesis around (7 + -4x + 5x2)
-7 + 4x + 5x2 + 7 + -4x + 5x2 = 0
Reorder the terms:
-7 + 7 + 4x + -4x + 5x2 + 5x2 = 0
Combine like terms: -7 + 7 = 0
0 + 4x + -4x + 5x2 + 5x2 = 0
4x + -4x + 5x2 + 5x2 = 0
Combine like terms: 4x + -4x = 0
0 + 5x2 + 5x2 = 0
5x2 + 5x2 = 0
Combine like terms: 5x2 + 5x2 = 10x2
10x2 = 0
Solving
10x2 = 0
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Divide each side by '10'.
x2 = 0.0
Simplifying
x2 = 0.0
Take the square root of each side:
x = {0.0}
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