4a^2+5=12a

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Solution for 4a^2+5=12a equation:


Simplifying
4a2 + 5 = 12a

Reorder the terms:
5 + 4a2 = 12a

Solving
5 + 4a2 = 12a

Solving for variable 'a'.

Reorder the terms:
5 + -12a + 4a2 = 12a + -12a

Combine like terms: 12a + -12a = 0
5 + -12a + 4a2 = 0

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

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 + -2a)' equal to zero and attempt to solve: Simplifying 5 + -2a = 0 Solving 5 + -2a = 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 + -2a = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -2a = 0 + -5 -2a = 0 + -5 Combine like terms: 0 + -5 = -5 -2a = -5 Divide each side by '-2'. a = 2.5 Simplifying a = 2.5

Solution

a = {0.5, 2.5}

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