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Popular >

expand 7x(-3-4x)

Solution

expand

7 x (- 3 - 4 x)

Solution

- 21 x - 28 x^{2}

Solution steps

7 x (- 3 - 4 x)

Apply the distributive law:

a (b - c) = ab - a c

7 x (- 3 - 4 x) = 7 x (- 3) - 7 x \cdot 4 x

= 7 x (- 3) - 7 x \cdot 4 x

Simplify

7 x (- 3) - 7 x \cdot 4 x : - 21 x - 28 x^{2}

= - 21 x - 28 x^{2}

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Frequently Asked Questions (FAQ)

What is expand 7x(-3-4x) ?
The solution to expand 7x(-3-4x) is -21x-28x^2