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Popular >

simplify 7x^9*(-3x^4)

Solution

simplify

7 x^{9} \cdot (- 3 x^{4})

Solution

- 21 x^{13}

Solution steps

7 x^{9} (- 3 x^{4})

Apply rule:

a (- b) = - ab

7 x^{9} (- 3 x^{4}) = - 7 x^{9} \cdot 3 x^{4}

= - 7 x^{9} \cdot 3 x^{4}

Multiply the numbers:

- 7 \cdot 3 = - 21

= - 21 x^{9} x^{4}

Apply exponent rule:

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

x^{9} x^{4} = x^{9 + 4}

= - 21 x^{9 + 4}

Add the numbers:

9 + 4 = 13

= - 21 x^{13}

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Frequently Asked Questions (FAQ)

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