The answer is: (x^2-c^2)x^2+a^2y^2=a^2(a^2-c^2)
I know it can be reduced further, but this is the answer my teacher wants.
I don't have a math font so: SR=SquareRoot and 6^2=6 squared or 6x6=36
Thank you for your help!
An equation is simplified.The solution is detailed and well presented. The response was given a rating of "5/5" by the student who originally posted the question.