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Popular >

expand 2pi*r^2(3-r)

Solution

expand

2 π \cdot r^{2} (3 - r)

Solution

- 2 π r^{3} + 6 π r^{2}

Solution steps

2 π r^{2} (3 - r)

Apply the distributive law:

a (b - c) = ab - a c

a = 2 π r^{2}, b = 3, c = r

= 2 π r^{2} \cdot 3 - 2 π r^{2} r

= 2 \cdot 3 π r^{2} - 2 π r^{2} r

Simplify

2 \cdot 3 π r^{2} - 2 π r^{2} r : - 2 π r^{3} + 6 π r^{2}

= - 2 π r^{3} + 6 π r^{2}

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Frequently Asked Questions (FAQ)

What is expand 2pi*r^2(3-r) ?
The solution to expand 2pi*r^2(3-r) is -2pir^3+6pir^2