Factor
\frac{\pi \left(A-B\right)d^{2}}{4}
Evaluate
\frac{\pi \left(A-B\right)d^{2}}{4}
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\frac{A\pi d^{2}-B\pi d^{2}}{4}
Factor out \frac{1}{4}.
\pi d^{2}\left(A-B\right)
Consider A\pi d^{2}-B\pi d^{2}. Factor out \pi d^{2}.
\frac{\pi d^{2}\left(A-B\right)}{4}
Rewrite the complete factored expression.
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