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Popular >

simplify (5a^7)(4a^2)

Solution

simplify

(5 a^{7}) (4 a^{2})

Solution

20 a^{9}

Solution steps

(5 a^{7}) (4 a^{2})

Apply exponent rule:

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

a^{7} a^{2} = a^{7 + 2}

= 5 \cdot 4 a^{7 + 2}

Add the numbers:

7 + 2 = 9

= 5 \cdot 4 a^{9}

Multiply the numbers:

5 \cdot 4 = 20

= 20 a^{9}

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Frequently Asked Questions (FAQ)

What is (5a^7)(4a^2) ?
The solution to (5a^7)(4a^2) is 20a^9