5a^2+18a=8

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Solution for 5a^2+18a=8 equation:


Simplifying
5a2 + 18a = 8

Reorder the terms:
18a + 5a2 = 8

Solving
18a + 5a2 = 8

Solving for variable 'a'.

Reorder the terms:
-8 + 18a + 5a2 = 8 + -8

Combine like terms: 8 + -8 = 0
-8 + 18a + 5a2 = 0

Factor a trinomial.
(-4 + -1a)(2 + -5a) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(2 + -5a)' equal to zero and attempt to solve: Simplifying 2 + -5a = 0 Solving 2 + -5a = 0 Move all terms containing a to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -5a = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -5a = 0 + -2 -5a = 0 + -2 Combine like terms: 0 + -2 = -2 -5a = -2 Divide each side by '-5'. a = 0.4 Simplifying a = 0.4

Solution

a = {-4, 0.4}

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