t^2+19t=-90

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Solution for t^2+19t=-90 equation:


Simplifying
t2 + 19t = -90

Reorder the terms:
19t + t2 = -90

Solving
19t + t2 = -90

Solving for variable 't'.

Reorder the terms:
90 + 19t + t2 = -90 + 90

Combine like terms: -90 + 90 = 0
90 + 19t + t2 = 0

Factor a trinomial.
(10 + t)(9 + t) = 0

Subproblem 1

Set the factor '(10 + t)' equal to zero and attempt to solve: Simplifying 10 + t = 0 Solving 10 + t = 0 Move all terms containing t to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + t = 0 + -10 Combine like terms: 10 + -10 = 0 0 + t = 0 + -10 t = 0 + -10 Combine like terms: 0 + -10 = -10 t = -10 Simplifying t = -10

Subproblem 2

Set the factor '(9 + t)' equal to zero and attempt to solve: Simplifying 9 + t = 0 Solving 9 + t = 0 Move all terms containing t to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + t = 0 + -9 Combine like terms: 9 + -9 = 0 0 + t = 0 + -9 t = 0 + -9 Combine like terms: 0 + -9 = -9 t = -9 Simplifying t = -9

Solution

t = {-10, -9}

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