sandra6282 sandra6282

25-11-2014
Mathematics

Answered

write these expressions as simply as possible

1). 9 - 3k +5k= .....

2). k + 2k+ 4k =

by the way means k squared I think so yh help

Verified Answer :

25-11-2014

\(1)\ 9-3k+5k=9+2k\\\\2)\ k^2+2k+4k=k^2+6k=k(k+6)\)

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apologiabiology apologiabiology

25-11-2014

so it is asking you to group like term so
x terms can be grouped/added/subtracted to other x terms, but not to x^2 or x^3 terms
x^2 terms to x^2 and so on so

1. 9-3k+5k=
9+(5k-3k)=
9+2k

2. k^2+2k+4k=
k^2+(2k+4k)=
k^2+6k=

Answer Link

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