0=-5a^2-8a

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Solution for 0=-5a^2-8a equation:


Simplifying
0 = -5a2 + -8a

Reorder the terms:
0 = -8a + -5a2

Solving
0 = -8a + -5a2

Solving for variable 'a'.
Remove the zero:
8a + 5a2 = -8a + -5a2 + 8a + 5a2

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

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

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

Factor out the Greatest Common Factor (GCF), 'a'.
a(8 + 5a) = 0

Subproblem 1

Set the factor 'a' equal to zero and attempt to solve: Simplifying a = 0 Solving a = 0 Move all terms containing a to the left, all other terms to the right. Simplifying a = 0

Subproblem 2

Set the factor '(8 + 5a)' equal to zero and attempt to solve: Simplifying 8 + 5a = 0 Solving 8 + 5a = 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 + 5a = 0 + -8 Combine like terms: 8 + -8 = 0 0 + 5a = 0 + -8 5a = 0 + -8 Combine like terms: 0 + -8 = -8 5a = -8 Divide each side by '5'. a = -1.6 Simplifying a = -1.6

Solution

a = {0, -1.6}

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