(u+9)(u+8)=0

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Solution for (u+9)(u+8)=0 equation:


Simplifying
(u + 9)(u + 8) = 0

Reorder the terms:
(9 + u)(u + 8) = 0

Reorder the terms:
(9 + u)(8 + u) = 0

Multiply (9 + u) * (8 + u)
(9(8 + u) + u(8 + u)) = 0
((8 * 9 + u * 9) + u(8 + u)) = 0
((72 + 9u) + u(8 + u)) = 0
(72 + 9u + (8 * u + u * u)) = 0
(72 + 9u + (8u + u2)) = 0

Combine like terms: 9u + 8u = 17u
(72 + 17u + u2) = 0

Solving
72 + 17u + u2 = 0

Solving for variable 'u'.

Factor a trinomial.
(9 + u)(8 + u) = 0

Subproblem 1

Set the factor '(9 + u)' equal to zero and attempt to solve: Simplifying 9 + u = 0 Solving 9 + u = 0 Move all terms containing u to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + u = 0 + -9 Combine like terms: 9 + -9 = 0 0 + u = 0 + -9 u = 0 + -9 Combine like terms: 0 + -9 = -9 u = -9 Simplifying u = -9

Subproblem 2

Set the factor '(8 + u)' equal to zero and attempt to solve: Simplifying 8 + u = 0 Solving 8 + u = 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 + u = 0 + -8 Combine like terms: 8 + -8 = 0 0 + u = 0 + -8 u = 0 + -8 Combine like terms: 0 + -8 = -8 u = -8 Simplifying u = -8

Solution

u = {-9, -8}

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