Answered

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What is the product of the expression (r - 7) (x-3)?

Sagot :

amonyeausberry74

Answer:

the ration is 3:7r

Step-by-step explanation:

MathWizard2118

Answer:

rx-3r-7x+21

Step-by-step explanation:

Since you don't know what r or x stand for, you need to distribute.

First, you would do r(x-3)-7(x-3)

Then, you would distribute again to make it rx-3r-7(x-3)

Last, you would distribute AGAIN to make it rx-3r-7x+21

The 21 comes from 7·x and 7·3

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