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Popular >

simplify (2a)(9a^3)

Solution

simplify

(2 a) (9 a^{3})

Solution

18 a^{4}

Solution steps

(2 a) (9 a^{3})

Apply exponent rule:

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

a a^{3} = a^{1 + 3}

= 2 \cdot 9 a^{1 + 3}

Add the numbers:

1 + 3 = 4

= 2 \cdot 9 a^{4}

Multiply the numbers:

2 \cdot 9 = 18

= 18 a^{4}

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Frequently Asked Questions (FAQ)

What is (2a)(9a^3) ?
The solution to (2a)(9a^3) is 18a^4