12a^2-16ab-28b^2=

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Solution for 12a^2-16ab-28b^2= equation:


Simplifying
12a2 + -16ab + -28b2 = 0

Reorder the terms:
-16ab + 12a2 + -28b2 = 0

Solving
-16ab + 12a2 + -28b2 = 0

Solving for variable 'a'.

Factor out the Greatest Common Factor (GCF), '4'.
4(-4ab + 3a2 + -7b2) = 0

Factor a trinomial.
4((3a + -7b)(a + b)) = 0

Ignore the factor 4.

Subproblem 1

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

Subproblem 2

Set the factor '(a + b)' equal to zero and attempt to solve: Simplifying a + b = 0 Solving a + b = 0 Move all terms containing a to the left, all other terms to the right. Add '-1b' to each side of the equation. a + b + -1b = 0 + -1b Combine like terms: b + -1b = 0 a + 0 = 0 + -1b a = 0 + -1b Remove the zero: a = -1b Simplifying a = -1b

Solution

a = {2.333333333b, -1b}

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