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Popular >

simplify (7x^4)(-3x^2)

Solution

simplify

(7 x^{4}) (- 3 x^{2})

Solution

- 21 x^{6}

Solution steps

(7 x^{4}) (- 3 x^{2})

Apply rule:

a (- b) = - ab

(7 x^{4}) (- 3 x^{2}) = - 7 x^{4} \cdot 3 x^{2}

= - 7 x^{4} \cdot 3 x^{2}

Multiply the numbers:

- 7 \cdot 3 = - 21

= - 21 x^{4} x^{2}

Apply exponent rule:

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

x^{4} x^{2} = x^{4 + 2}

= - 21 x^{4 + 2}

Add the numbers:

4 + 2 = 6

= - 21 x^{6}

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Frequently Asked Questions (FAQ)

What is (7x^4)(-3x^2) ?
The solution to (7x^4)(-3x^2) is -21x^6