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Salsk061 [2.6K]
2 years ago
9

Rewrite without parentheses and simplify.

Mathematics
1 answer:
kupik [55]2 years ago
3 0

Answer:

  x² +14x +49

Step-by-step explanation:

Use the distributive property and collect terms.

  (x +7)² = (x +7)(x +7)

  = x(x +7) +7(x +7)

  = x² +7x +7x +49

  = x² +14x +49

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PLEASE HELP! 30 POINTS for RIGHT answer!
yulyashka [42]

gg easy

we want to cancel 1 term

first, get them into form am+bn=c where a, b, and c are constants

m-2n=2 is good

m+n=2(n-3) is m+n=2n-6 which is m-n=-6


compare constants

m's have 1 and 1

n's have -2 and -1

let's cancel m's


a. multiply 1st equation by -1

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add to 2nd equation


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sub back

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m+8=-6

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b. to check

m=-14 and n=-8

m-2n=2

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-14-(-8)=-6

-14+8=-6

-6=-6 yep


so m=-14 and n=-8 is the solution

5 0
3 years ago
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Answer:

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Step-by-step explanation:

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Answer:

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