2(3a^2-5)=8a+4

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Solution for 2(3a^2-5)=8a+4 equation:


Simplifying
2(3a2 + -5) = 8a + 4

Reorder the terms:
2(-5 + 3a2) = 8a + 4
(-5 * 2 + 3a2 * 2) = 8a + 4
(-10 + 6a2) = 8a + 4

Reorder the terms:
-10 + 6a2 = 4 + 8a

Solving
-10 + 6a2 = 4 + 8a

Solving for variable 'a'.

Reorder the terms:
-10 + -4 + -8a + 6a2 = 4 + 8a + -4 + -8a

Combine like terms: -10 + -4 = -14
-14 + -8a + 6a2 = 4 + 8a + -4 + -8a

Reorder the terms:
-14 + -8a + 6a2 = 4 + -4 + 8a + -8a

Combine like terms: 4 + -4 = 0
-14 + -8a + 6a2 = 0 + 8a + -8a
-14 + -8a + 6a2 = 8a + -8a

Combine like terms: 8a + -8a = 0
-14 + -8a + 6a2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-7 + -4a + 3a2) = 0

Factor a trinomial.
2((-1 + -1a)(7 + -3a)) = 0

Ignore the factor 2.

Subproblem 1

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

Subproblem 2

Set the factor '(7 + -3a)' equal to zero and attempt to solve: Simplifying 7 + -3a = 0 Solving 7 + -3a = 0 Move all terms containing a to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -3a = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -3a = 0 + -7 -3a = 0 + -7 Combine like terms: 0 + -7 = -7 -3a = -7 Divide each side by '-3'. a = 2.333333333 Simplifying a = 2.333333333

Solution

a = {-1, 2.333333333}

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