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When k³-17k+32 is divided by k+5,find the quotient and match the letters to the terms to fill in L N O P Q ? Can you show me how to set it up and the answer please

When k³-17k+32 is divided by k+5,find the quotient and match the letters to the terms-example-1
User Janfy
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1 Answer

23 votes
23 votes

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k + 5 l k^3 - 17 k + 32

First we can see terms k+5 is the letter D and k^3 is letter E , -17 k letter F and

32 is letter G

Then we search for a term that multiplied by k equals k^3, which is k^2 , this is going to be our letter A

We multiply ( k + 5 ) by k^2 , the result is k^3 + 5 k^2 , we place these terms below k ^3 and -17 k changing the signs,

k ^3 - 17 k

- k^3 - 5 k ^2

k^3 is cancelled and since 17 k and -5 k^2 are not similar we don't operate them, they continue for our next round of division. Until now we can see -k^3 is letter H and -5k^2 is letter l.

Afterwards, we search for a term that multiplied by k equals -5 k^2, which is -5k, this is going to be the letter B. Then we multiply -5 k by ( k + 5), the result is -5k^2 and -25 k. Then we change the signs before placing them below our previous result. Letter j is -5 k^2 and letter k is -17 k

- 5 k^2 - 17 k + 32

+ 5 k^2 + 25 k

5 k^2 is cancelled and the result of adding -17 k to 25k is 8 k. It implies letter L is 5 k^2 and letter M is 25 k

Then we search for a term that multiplied by k equals 8 k, which is 8. It implies letter C is 8. We multiply 8 by ( k + 5), the result is 8k + 40. Then we change the signs before placing them below our previous result. Letter N is 8k

8 k + 32

-8 k - 40

8 k is cancelled and the result of subtracting 40 to 32 is -8. Doing so we find letter Q is -8. Letter O is -8 k and letter P is -40

User Friedrich
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