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Popular >

simplify (4r^5)(2r^8)

Solution

simplify

(4 r^{5}) (2 r^{8})

Solution

8 r^{13}

Solution steps

(4 r^{5}) (2 r^{8})

Apply exponent rule:

a^{b} \cdot a^{c} = a^{b + c}

r^{5} r^{8} = r^{5 + 8}

= 4 \cdot 2 r^{5 + 8}

Add the numbers:

5 + 8 = 13

= 4 \cdot 2 r^{13}

Multiply the numbers:

4 \cdot 2 = 8

= 8 r^{13}

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Frequently Asked Questions (FAQ)

What is (4r^5)(2r^8) ?
The solution to (4r^5)(2r^8) is 8r^{13}