sqrt(x^2-9)=x^2-21

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Solution for sqrt(x^2-9)=x^2-21 equation: 


Simplifying
sqrt(x2 + -9) = x2 + -21

Reorder the terms:
qrst(-9 + x2) = x2 + -21
(-9 * qrst + x2 * qrst) = x2 + -21
(-9qrst + qrstx2) = x2 + -21

Reorder the terms:
-9qrst + qrstx2 = -21 + x2

Solving
-9qrst + qrstx2 = -21 + x2

Solving for variable 'q'.

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

Reorder the terms:
21 + -9qrst + qrstx2 + -1x2 = -21 + x2 + 21 + -1x2

Reorder the terms:
21 + -9qrst + qrstx2 + -1x2 = -21 + 21 + x2 + -1x2

Combine like terms: -21 + 21 = 0
21 + -9qrst + qrstx2 + -1x2 = 0 + x2 + -1x2
21 + -9qrst + qrstx2 + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
21 + -9qrst + qrstx2 + -1x2 = 0

The solution to this equation could not be determined.

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