You can put this solution on YOUR website! How would I solve "49-36^2=0"?
Since there's no variable, there's nothing to solve.
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And, 49-36^2 does not equal zero.
You can put this solution on YOUR website! Perhaps you mean something like:
49x^2-36y^2=0
(7x-6y)*(7x+6y)=0
or
49x^2-36=0
(7x-6)*(7x+6)=0
or
49-36y^2=0
(7-6y)*(7+6y)=0