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3 years ago

What expressions are equivalent to -3.5(2-3n)-2.5n?

1 answer:

6 0

−3.5(2−3n)−2.5nDistribute:=(−3.5)(2)+(−3.5)(−3n)+−2.5n=−7+10.5n+−2.5nCombine Like Terms:=−7+10.5n+−2.5n=(10.5n+−2.5n)+(−7)=8n+−7

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LiRa [457]

<h2>The product of the rational expressions $\dfrac{7x}{x-4}.\dfrac{x}{x+7}$ = $\dfrac{7x^2}{x^2+3x-28}$ </h2>

Step-by-step explanation:

We have,

$\dfrac{7x}{x-4}.\dfrac{x}{x+7}$

To find, the product of the rational expressions $\dfrac{7x}{x-4}.\dfrac{x}{x+7}$ = ?

∴ $\dfrac{7x}{x-4}.\dfrac{x}{x+7}$

= $\dfrac{7x.x}{(x-4)(x+7)}$

= $\dfrac{7x^2}{(x(x+7)-4(x+7)}$

= $\dfrac{7x^2}{x^2+7x-4x-28}$

= $\dfrac{7x^2}{x^2+3x-28}$

Thus, the product of the rational expressions $\dfrac{7x}{x-4}.\dfrac{x}{x+7}$ = $\dfrac{7x^2}{x^2+3x-28}$

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zzz [600]

-19/15

you multiply boh sides by the other denomonater

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2 years ago

Delicious77 [7]

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AfilCa [17]

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olga_2 [115]

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