42a^2-35ab-28b^2=0

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Solution for 42a^2-35ab-28b^2=0 equation:


Simplifying
42a2 + -35ab + -28b2 = 0

Reorder the terms:
-35ab + 42a2 + -28b2 = 0

Solving
-35ab + 42a2 + -28b2 = 0

Solving for variable 'a'.

Factor out the Greatest Common Factor (GCF), '7'.
7(-5ab + 6a2 + -4b2) = 0

Factor a trinomial.
7((3a + -4b)(2a + b)) = 0

Ignore the factor 7.

Subproblem 1

Set the factor '(3a + -4b)' equal to zero and attempt to solve: Simplifying 3a + -4b = 0 Solving 3a + -4b = 0 Move all terms containing a to the left, all other terms to the right. Add '4b' to each side of the equation. 3a + -4b + 4b = 0 + 4b Combine like terms: -4b + 4b = 0 3a + 0 = 0 + 4b 3a = 0 + 4b Remove the zero: 3a = 4b Divide each side by '3'. a = 1.333333333b Simplifying a = 1.333333333b

Subproblem 2

Set the factor '(2a + b)' equal to zero and attempt to solve: Simplifying 2a + b = 0 Solving 2a + b = 0 Move all terms containing a to the left, all other terms to the right. Add '-1b' to each side of the equation. 2a + b + -1b = 0 + -1b Combine like terms: b + -1b = 0 2a + 0 = 0 + -1b 2a = 0 + -1b Remove the zero: 2a = -1b Divide each side by '2'. a = -0.5b Simplifying a = -0.5b

Solution

a = {1.333333333b, -0.5b}

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