42a^2-24=-27a

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Solution for 42a^2-24=-27a equation:


Simplifying
42a2 + -24 = -27a

Reorder the terms:
-24 + 42a2 = -27a

Solving
-24 + 42a2 = -27a

Solving for variable 'a'.

Reorder the terms:
-24 + 27a + 42a2 = -27a + 27a

Combine like terms: -27a + 27a = 0
-24 + 27a + 42a2 = 0

Factor out the Greatest Common Factor (GCF), '3'.
3(-8 + 9a + 14a2) = 0

Factor a trinomial.
3((-8 + -7a)(1 + -2a)) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(-8 + -7a)' equal to zero and attempt to solve: Simplifying -8 + -7a = 0 Solving -8 + -7a = 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 + -7a = 0 + 8 Combine like terms: -8 + 8 = 0 0 + -7a = 0 + 8 -7a = 0 + 8 Combine like terms: 0 + 8 = 8 -7a = 8 Divide each side by '-7'. a = -1.142857143 Simplifying a = -1.142857143

Subproblem 2

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

Solution

a = {-1.142857143, 0.5}

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