2x(x+8)=360

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Solution for 2x(x+8)=360 equation:


Simplifying
2x(x + 8) = 360

Reorder the terms:
2x(8 + x) = 360
(8 * 2x + x * 2x) = 360
(16x + 2x2) = 360

Solving
16x + 2x2 = 360

Solving for variable 'x'.

Reorder the terms:
-360 + 16x + 2x2 = 360 + -360

Combine like terms: 360 + -360 = 0
-360 + 16x + 2x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-180 + 8x + x2) = 0

Factor a trinomial.
2((-18 + -1x)(10 + -1x)) = 0

Ignore the factor 2.

Subproblem 1

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

Subproblem 2

Set the factor '(10 + -1x)' equal to zero and attempt to solve: Simplifying 10 + -1x = 0 Solving 10 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + -1x = 0 + -10 Combine like terms: 10 + -10 = 0 0 + -1x = 0 + -10 -1x = 0 + -10 Combine like terms: 0 + -10 = -10 -1x = -10 Divide each side by '-1'. x = 10 Simplifying x = 10

Solution

x = {-18, 10}

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