(20+x)x=224

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Solution for (20+x)x=224 equation:


Simplifying
(20 + x) * x = 224

Reorder the terms for easier multiplication:
x(20 + x) = 224
(20 * x + x * x) = 224
(20x + x2) = 224

Solving
20x + x2 = 224

Solving for variable 'x'.

Reorder the terms:
-224 + 20x + x2 = 224 + -224

Combine like terms: 224 + -224 = 0
-224 + 20x + x2 = 0

Factor a trinomial.
(-28 + -1x)(8 + -1x) = 0

Subproblem 1

Set the factor '(-28 + -1x)' equal to zero and attempt to solve: Simplifying -28 + -1x = 0 Solving -28 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '28' to each side of the equation. -28 + 28 + -1x = 0 + 28 Combine like terms: -28 + 28 = 0 0 + -1x = 0 + 28 -1x = 0 + 28 Combine like terms: 0 + 28 = 28 -1x = 28 Divide each side by '-1'. x = -28 Simplifying x = -28

Subproblem 2

Set the factor '(8 + -1x)' equal to zero and attempt to solve: Simplifying 8 + -1x = 0 Solving 8 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + -1x = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -1x = 0 + -8 -1x = 0 + -8 Combine like terms: 0 + -8 = -8 -1x = -8 Divide each side by '-1'. x = 8 Simplifying x = 8

Solution

x = {-28, 8}

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