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Popular >

simplify (5r)(4r^3)

Solution

simplify

(5 r) (4 r^{3})

Solution

20 r^{4}

Solution steps

(5 r) (4 r^{3})

Apply exponent rule:

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

r r^{3} = r^{1 + 3}

= 5 \cdot 4 r^{1 + 3}

Add the numbers:

1 + 3 = 4

= 5 \cdot 4 r^{4}

Multiply the numbers:

5 \cdot 4 = 20

= 20 r^{4}

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Frequently Asked Questions (FAQ)

What is (5r)(4r^3) ?
The solution to (5r)(4r^3) is 20r^4