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Popular >

expand 4a^2(pi/2-1)

Solution

expand

4 a^{2} (\frac{π}{2} - 1)

Solution

2 π a^{2} - 4 a^{2}

Solution steps

4 a^{2} (\frac{π}{2} - 1)

= 4 (\frac{π}{2} - 1) a^{2}

Apply the distributive law:

a (b - c) = ab - a c

a = 4 a^{2}, b = \frac{π}{2}, c = 1

= 4 a^{2} \frac{π}{2} - 4 a^{2} \cdot 1

= 4 \cdot \frac{π}{2} a^{2} - 4 \cdot 1 \cdot a^{2}

Simplify

4 \cdot \frac{π}{2} a^{2} - 4 \cdot 1 \cdot a^{2} : 2 π a^{2} - 4 a^{2}

= 2 π a^{2} - 4 a^{2}

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Frequently Asked Questions (FAQ)

What is expand 4a^2(pi/2-1) ?
The solution to expand 4a^2(pi/2-1) is 2pia^2-4a^2