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Popular >

simplify (2r^9)(4r)

Solution

simplify

(2 r^{9}) (4 r)

Solution

8 r^{10}

Solution steps

(2 r^{9}) (4 r)

Apply exponent rule:

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

r^{9} r = r^{9 + 1}

= 2 \cdot 4 r^{9 + 1}

Add the numbers:

9 + 1 = 10

= 2 \cdot 4 r^{10}

Multiply the numbers:

2 \cdot 4 = 8

= 8 r^{10}

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Frequently Asked Questions (FAQ)

What is (2r^9)(4r) ?
The solution to (2r^9)(4r) is 8r^{10}