Solve for y
y=\left(25-x\right)^{2}
25-x\geq 0
Solve for x (complex solution)
x=-\sqrt{y}+25
Solve for y (complex solution)
y=\left(25-x\right)^{2}
x=25\text{ or }arg(25-x)<\pi
Solve for x
x=-\sqrt{y}+25
y\geq 0
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\sqrt{y}+x-x=25-x
Subtract x from both sides of the equation.
\sqrt{y}=25-x
Subtracting x from itself leaves 0.
y=\left(25-x\right)^{2}
Square both sides of the equation.
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