a^2-4b^2=20

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


Simplifying
a2 + -4b2 = 20

Solving
a2 + -4b2 = 20

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Add '4b2' to each side of the equation.
a2 + -4b2 + 4b2 = 20 + 4b2

Combine like terms: -4b2 + 4b2 = 0
a2 + 0 = 20 + 4b2
a2 = 20 + 4b2

Simplifying
a2 = 20 + 4b2

Reorder the terms:
-20 + a2 + -4b2 = 20 + 4b2 + -20 + -4b2

Reorder the terms:
-20 + a2 + -4b2 = 20 + -20 + 4b2 + -4b2

Combine like terms: 20 + -20 = 0
-20 + a2 + -4b2 = 0 + 4b2 + -4b2
-20 + a2 + -4b2 = 4b2 + -4b2

Combine like terms: 4b2 + -4b2 = 0
-20 + a2 + -4b2 = 0

The solution to this equation could not be determined.

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