126a^2-105a-616=

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Solution for 126a^2-105a-616= equation:


Simplifying
126a2 + -105a + -616 = 0

Reorder the terms:
-616 + -105a + 126a2 = 0

Solving
-616 + -105a + 126a2 = 0

Solving for variable 'a'.

Factor out the Greatest Common Factor (GCF), '7'.
7(-88 + -15a + 18a2) = 0

Factor a trinomial.
7((-11 + -6a)(8 + -3a)) = 0

Ignore the factor 7.

Subproblem 1

Set the factor '(-11 + -6a)' equal to zero and attempt to solve: Simplifying -11 + -6a = 0 Solving -11 + -6a = 0 Move all terms containing a to the left, all other terms to the right. Add '11' to each side of the equation. -11 + 11 + -6a = 0 + 11 Combine like terms: -11 + 11 = 0 0 + -6a = 0 + 11 -6a = 0 + 11 Combine like terms: 0 + 11 = 11 -6a = 11 Divide each side by '-6'. a = -1.833333333 Simplifying a = -1.833333333

Subproblem 2

Set the factor '(8 + -3a)' equal to zero and attempt to solve: Simplifying 8 + -3a = 0 Solving 8 + -3a = 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 + -3a = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -3a = 0 + -8 -3a = 0 + -8 Combine like terms: 0 + -8 = -8 -3a = -8 Divide each side by '-3'. a = 2.666666667 Simplifying a = 2.666666667

Solution

a = {-1.833333333, 2.666666667}

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