a^2+2a-80=0

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Solution for a^2+2a-80=0 equation:


Simplifying
a2 + 2a + -80 = 0

Reorder the terms:
-80 + 2a + a2 = 0

Solving
-80 + 2a + a2 = 0

Solving for variable 'a'.

Factor a trinomial.
(-10 + -1a)(8 + -1a) = 0

Subproblem 1

Set the factor '(-10 + -1a)' equal to zero and attempt to solve: Simplifying -10 + -1a = 0 Solving -10 + -1a = 0 Move all terms containing a to the left, all other terms to the right. Add '10' to each side of the equation. -10 + 10 + -1a = 0 + 10 Combine like terms: -10 + 10 = 0 0 + -1a = 0 + 10 -1a = 0 + 10 Combine like terms: 0 + 10 = 10 -1a = 10 Divide each side by '-1'. a = -10 Simplifying a = -10

Subproblem 2

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

Solution

a = {-10, 8}

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