-a^2+17a-60=0

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Solution for -a^2+17a-60=0 equation:


Simplifying
-1a2 + 17a + -60 = 0

Reorder the terms:
-60 + 17a + -1a2 = 0

Solving
-60 + 17a + -1a2 = 0

Solving for variable 'a'.

Factor a trinomial.
(-12 + a)(5 + -1a) = 0

Subproblem 1

Set the factor '(-12 + a)' equal to zero and attempt to solve: Simplifying -12 + a = 0 Solving -12 + a = 0 Move all terms containing a to the left, all other terms to the right. Add '12' to each side of the equation. -12 + 12 + a = 0 + 12 Combine like terms: -12 + 12 = 0 0 + a = 0 + 12 a = 0 + 12 Combine like terms: 0 + 12 = 12 a = 12 Simplifying a = 12

Subproblem 2

Set the factor '(5 + -1a)' equal to zero and attempt to solve: Simplifying 5 + -1a = 0 Solving 5 + -1a = 0 Move all terms containing a to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -1a = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1a = 0 + -5 -1a = 0 + -5 Combine like terms: 0 + -5 = -5 -1a = -5 Divide each side by '-1'. a = 5 Simplifying a = 5

Solution

a = {12, 5}

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