((x+6)*(x+6))+((x)*(x))=900

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Solution for ((x+6)*(x+6))+((x)*(x))=900 equation:


Simplifying
((x + 6)(x + 6)) + ((x)(x)) = 900

Reorder the terms:
((6 + x)(x + 6)) + ((x)(x)) = 900

Reorder the terms:
((6 + x)(6 + x)) + ((x)(x)) = 900

Multiply (6 + x) * (6 + x)
((6(6 + x) + x(6 + x))) + ((x)(x)) = 900
(((6 * 6 + x * 6) + x(6 + x))) + ((x)(x)) = 900
(((36 + 6x) + x(6 + x))) + ((x)(x)) = 900
((36 + 6x + (6 * x + x * x))) + ((x)(x)) = 900
((36 + 6x + (6x + x2))) + ((x)(x)) = 900

Combine like terms: 6x + 6x = 12x
((36 + 12x + x2)) + ((x)(x)) = 900
(36 + 12x + x2) + ((x)(x)) = 900

Remove parenthesis around (36 + 12x + x2)
36 + 12x + x2 + ((x)(x)) = 900

Multiply x * x
36 + 12x + x2 + (x2) = 900
36 + 12x + x2 + x2 = 900

Combine like terms: x2 + x2 = 2x2
36 + 12x + 2x2 = 900

Solving
36 + 12x + 2x2 = 900

Solving for variable 'x'.

Reorder the terms:
36 + -900 + 12x + 2x2 = 900 + -900

Combine like terms: 36 + -900 = -864
-864 + 12x + 2x2 = 900 + -900

Combine like terms: 900 + -900 = 0
-864 + 12x + 2x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-432 + 6x + x2) = 0

Factor a trinomial.
2((-24 + -1x)(18 + -1x)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-24 + -1x)' equal to zero and attempt to solve: Simplifying -24 + -1x = 0 Solving -24 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '24' to each side of the equation. -24 + 24 + -1x = 0 + 24 Combine like terms: -24 + 24 = 0 0 + -1x = 0 + 24 -1x = 0 + 24 Combine like terms: 0 + 24 = 24 -1x = 24 Divide each side by '-1'. x = -24 Simplifying x = -24

Subproblem 2

Set the factor '(18 + -1x)' equal to zero and attempt to solve: Simplifying 18 + -1x = 0 Solving 18 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-18' to each side of the equation. 18 + -18 + -1x = 0 + -18 Combine like terms: 18 + -18 = 0 0 + -1x = 0 + -18 -1x = 0 + -18 Combine like terms: 0 + -18 = -18 -1x = -18 Divide each side by '-1'. x = 18 Simplifying x = 18

Solution

x = {-24, 18}

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