a^2-3a^2=40a

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Solution for a^2-3a^2=40a equation:


Simplifying
a2 + -3a2 = 40a

Combine like terms: a2 + -3a2 = -2a2
-2a2 = 40a

Solving
-2a2 = 40a

Solving for variable 'a'.

Reorder the terms:
-40a + -2a2 = 40a + -40a

Combine like terms: 40a + -40a = 0
-40a + -2a2 = 0

Factor out the Greatest Common Factor (GCF), '-2a'.
-2a(20 + a) = 0

Ignore the factor -2.

Subproblem 1

Set the factor 'a' equal to zero and attempt to solve: Simplifying a = 0 Solving a = 0 Move all terms containing a to the left, all other terms to the right. Simplifying a = 0

Subproblem 2

Set the factor '(20 + a)' equal to zero and attempt to solve: Simplifying 20 + a = 0 Solving 20 + a = 0 Move all terms containing a to the left, all other terms to the right. Add '-20' to each side of the equation. 20 + -20 + a = 0 + -20 Combine like terms: 20 + -20 = 0 0 + a = 0 + -20 a = 0 + -20 Combine like terms: 0 + -20 = -20 a = -20 Simplifying a = -20

Solution

a = {0, -20}

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