7(x+9)2+126=0

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Solution for 7(x+9)2+126=0 equation:


Simplifying
7(x + 9) * 2 + 126 = 0

Reorder the terms:
7(9 + x) * 2 + 126 = 0

Reorder the terms for easier multiplication:
7 * 2(9 + x) + 126 = 0

Multiply 7 * 2
14(9 + x) + 126 = 0
(9 * 14 + x * 14) + 126 = 0
(126 + 14x) + 126 = 0

Reorder the terms:
126 + 126 + 14x = 0

Combine like terms: 126 + 126 = 252
252 + 14x = 0

Solving
252 + 14x = 0

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-252' to each side of the equation.
252 + -252 + 14x = 0 + -252

Combine like terms: 252 + -252 = 0
0 + 14x = 0 + -252
14x = 0 + -252

Combine like terms: 0 + -252 = -252
14x = -252

Divide each side by '14'.
x = -18

Simplifying
x = -18

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