15a^2-10ab-25b^2=

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Solution for 15a^2-10ab-25b^2= equation:


Simplifying
15a2 + -10ab + -25b2 = 0

Reorder the terms:
-10ab + 15a2 + -25b2 = 0

Solving
-10ab + 15a2 + -25b2 = 0

Solving for variable 'a'.

Factor out the Greatest Common Factor (GCF), '5'.
5(-2ab + 3a2 + -5b2) = 0

Factor a trinomial.
5((3a + -5b)(a + b)) = 0

Ignore the factor 5.

Subproblem 1

Set the factor '(3a + -5b)' equal to zero and attempt to solve: Simplifying 3a + -5b = 0 Solving 3a + -5b = 0 Move all terms containing a to the left, all other terms to the right. Add '5b' to each side of the equation. 3a + -5b + 5b = 0 + 5b Combine like terms: -5b + 5b = 0 3a + 0 = 0 + 5b 3a = 0 + 5b Remove the zero: 3a = 5b Divide each side by '3'. a = 1.666666667b Simplifying a = 1.666666667b

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 = {1.666666667b, -1b}

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