q^2+2q+5=13

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Solution for q^2+2q+5=13 equation:


Simplifying
q2 + 2q + 5 = 13

Reorder the terms:
5 + 2q + q2 = 13

Solving
5 + 2q + q2 = 13

Solving for variable 'q'.

Reorder the terms:
5 + -13 + 2q + q2 = 13 + -13

Combine like terms: 5 + -13 = -8
-8 + 2q + q2 = 13 + -13

Combine like terms: 13 + -13 = 0
-8 + 2q + q2 = 0

Factor a trinomial.
(-4 + -1q)(2 + -1q) = 0

Subproblem 1

Set the factor '(-4 + -1q)' equal to zero and attempt to solve: Simplifying -4 + -1q = 0 Solving -4 + -1q = 0 Move all terms containing q to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + -1q = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -1q = 0 + 4 -1q = 0 + 4 Combine like terms: 0 + 4 = 4 -1q = 4 Divide each side by '-1'. q = -4 Simplifying q = -4

Subproblem 2

Set the factor '(2 + -1q)' equal to zero and attempt to solve: Simplifying 2 + -1q = 0 Solving 2 + -1q = 0 Move all terms containing q to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -1q = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1q = 0 + -2 -1q = 0 + -2 Combine like terms: 0 + -2 = -2 -1q = -2 Divide each side by '-1'. q = 2 Simplifying q = 2

Solution

q = {-4, 2}

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