Question

x^2-y^2=400 solve equation

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Answer 1

Answer:

Simplifying

x2 + y2 = 400

Solving

x2 + y2 = 400

Solving for variable 'x'.

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

Add '-1y2' to each side of the equation.

x2 + y2 + -1y2 = 400 + -1y2

Combine like terms: y2 + -1y2 = 0

x2 + 0 = 400 + -1y2

x2 = 400 + -1y2

Simplifying

x2 = 400 + -1y2

Reorder the terms:

-400 + x2 + y2 = 400 + -1y2 + -400 + y2

Reorder the terms:

-400 + x2 + y2 = 400 + -400 + -1y2 + y2

Combine like terms: 400 + -400 = 0

-400 + x2 + y2 = 0 + -1y2 + y2

-400 + x2 + y2 = -1y2 + y2

Combine like terms: -1y2 + y2 = 0

-400 + x2 + y2 = 0

The solution to this equation could not be determined.