8x^2-72y^2=

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Solution for 8x^2-72y^2= equation: 


Simplifying
8x2 + -72y2 = 0

Solving
8x2 + -72y2 = 0

Solving for variable 'x'.

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

Add '72y2' to each side of the equation.
8x2 + -72y2 + 72y2 = 0 + 72y2

Combine like terms: -72y2 + 72y2 = 0
8x2 + 0 = 0 + 72y2
8x2 = 0 + 72y2
Remove the zero:
8x2 = 72y2

Divide each side by '8'.
x2 = 9y2

Simplifying
x2 = 9y2

Take the square root of each side:
x = {-3y, 3y}

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