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Popular >

simplify (7k^4)(3k^9)

Solution

simplify

(7 k^{4}) (3 k^{9})

Solution

21 k^{13}

Solution steps

(7 k^{4}) (3 k^{9})

Apply exponent rule:

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

k^{4} k^{9} = k^{4 + 9}

= 7 \cdot 3 k^{4 + 9}

Add the numbers:

4 + 9 = 13

= 7 \cdot 3 k^{13}

Multiply the numbers:

7 \cdot 3 = 21

= 21 k^{13}

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Frequently Asked Questions (FAQ)

What is (7k^4)(3k^9) ?
The solution to (7k^4)(3k^9) is 21k^{13}