16a^2-4ab-20b^2=0

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Solution for 16a^2-4ab-20b^2=0 equation:


Simplifying
16a2 + -4ab + -20b2 = 0

Reorder the terms:
-4ab + 16a2 + -20b2 = 0

Solving
-4ab + 16a2 + -20b2 = 0

Solving for variable 'a'.

Factor out the Greatest Common Factor (GCF), '4'.
4(-1ab + 4a2 + -5b2) = 0

Factor a trinomial.
4((4a + -5b)(a + b)) = 0

Ignore the factor 4.

Subproblem 1

Set the factor '(4a + -5b)' equal to zero and attempt to solve: Simplifying 4a + -5b = 0 Solving 4a + -5b = 0 Move all terms containing a to the left, all other terms to the right. Add '5b' to each side of the equation. 4a + -5b + 5b = 0 + 5b Combine like terms: -5b + 5b = 0 4a + 0 = 0 + 5b 4a = 0 + 5b Remove the zero: 4a = 5b Divide each side by '4'. a = 1.25b Simplifying a = 1.25b

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 = {1.25b, -1b}

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