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hyperkid
hyperkid hyperkid
  • 22-02-2015
  • Mathematics
Answered

would the answer to the following be 5 x?

expand and simplify: (x+1)(x+3)

Verified Answer :

ayec
ayec ayec
  • 22-02-2015

(x+1)(x+3)

x^2+3x+x+3

x^2+4x+3

That's how you expand it.

and to get the answer, you can equal (x+1)(x+3) to 0.

(x+1)(x+3)=0

x+1=0 or x+3=0

x=-1 or x=-3

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konrad509
konrad509 konrad509
  • 22-02-2015

\((x+1)(x+3) =x^2+3x+x+3=x^2+4x+3\)

Answer Link

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