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Popular >

expand pir^2(r-7)

Solution

expand

π r^{2} (r - 7)

Solution

π r^{3} - 7 π r^{2}

Solution steps

π r^{2} (r - 7)

Apply the distributive law:

a (b - c) = ab - a c

a = π r^{2}, b = r, c = 7

= π r^{2} r - π r^{2} \cdot 7

= π r^{2} r - 7 π r^{2}

π r^{2} r = π r^{3}

= π r^{3} - 7 π r^{2}

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Frequently Asked Questions (FAQ)

What is expand pir^2(r-7) ?
The solution to expand pir^2(r-7) is pir^3-7pir^2