10=4a^2+18a

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Solution for 10=4a^2+18a equation:


Simplifying
10 = 4a2 + 18a

Reorder the terms:
10 = 18a + 4a2

Solving
10 = 18a + 4a2

Solving for variable 'a'.

Reorder the terms:
10 + -18a + -4a2 = 18a + -18a + 4a2 + -4a2

Combine like terms: 18a + -18a = 0
10 + -18a + -4a2 = 0 + 4a2 + -4a2
10 + -18a + -4a2 = 4a2 + -4a2

Combine like terms: 4a2 + -4a2 = 0
10 + -18a + -4a2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(5 + -9a + -2a2) = 0

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

Ignore the factor 2.

Subproblem 1

Set the factor '(1 + -2a)' equal to zero and attempt to solve: Simplifying 1 + -2a = 0 Solving 1 + -2a = 0 Move all terms containing a to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + -2a = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -2a = 0 + -1 -2a = 0 + -1 Combine like terms: 0 + -1 = -1 -2a = -1 Divide each side by '-2'. a = 0.5 Simplifying a = 0.5

Subproblem 2

Set the factor '(5 + a)' equal to zero and attempt to solve: Simplifying 5 + a = 0 Solving 5 + a = 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 + a = 0 + -5 Combine like terms: 5 + -5 = 0 0 + a = 0 + -5 a = 0 + -5 Combine like terms: 0 + -5 = -5 a = -5 Simplifying a = -5

Solution

a = {0.5, -5}

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