U^2+20U-224=0

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Solution for U^2+20U-224=0 equation:


Simplifying
U2 + 20U + -224 = 0

Reorder the terms:
-224 + 20U + U2 = 0

Solving
-224 + 20U + U2 = 0

Solving for variable 'U'.

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

Subproblem 1

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

Subproblem 2

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

Solution

U = {-28, 8}

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