8a^2+4=12a

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Solution for 8a^2+4=12a equation:


Simplifying
8a2 + 4 = 12a

Reorder the terms:
4 + 8a2 = 12a

Solving
4 + 8a2 = 12a

Solving for variable 'a'.

Reorder the terms:
4 + -12a + 8a2 = 12a + -12a

Combine like terms: 12a + -12a = 0
4 + -12a + 8a2 = 0

Factor out the Greatest Common Factor (GCF), '4'.
4(1 + -3a + 2a2) = 0

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

Ignore the factor 4.

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 '(1 + -1a)' equal to zero and attempt to solve: Simplifying 1 + -1a = 0 Solving 1 + -1a = 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 + -1a = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -1a = 0 + -1 -1a = 0 + -1 Combine like terms: 0 + -1 = -1 -1a = -1 Divide each side by '-1'. a = 1 Simplifying a = 1

Solution

a = {0.5, 1}

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