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Popular >

simplify pi(r+2)^2-pir^2

Solution

simplify

π (r + 2)^{2} - π r^{2}

Solution

4 π r + 4 π

Solution steps

π (r + 2)^{2} - π r^{2}

(r + 2)^{2} : r^{2} + 4 r + 4

= π (r^{2} + 4 r + 4) - π r^{2}

Expand

π (r^{2} + 4 r + 4) : π r^{2} + 4 π r + 4 π

= π r^{2} + 4 π r + 4 π - π r^{2}

Simplify

π r^{2} + 4 π r + 4 π - π r^{2} : 4 π r + 4 π

= 4 π r + 4 π

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Frequently Asked Questions (FAQ)

What is pi(r+2)^2-pir^2 ?
The solution to pi(r+2)^2-pir^2 is 4pir+4pi