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lys-0071 [83]
3 years ago
14

Need help with math work please

Mathematics
1 answer:
barxatty [35]3 years ago
4 0

Answer:

(f+g)(x)=x^2+8+x-2

=x^2+x+6

The answer is the 3rd one in your options.

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maxonik [38]

Answer:

\frac{1}{4k^3}

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It's already in a form that only ha positive exponents.  Just to state it though you could rewrite it as k*(4k^{4})^{-1} or k*4^{-1}*k^{-4}  The question asks for positive exponents though so yu don't need to do that.

You also need to know \frac{x^a}{x^b}=x^{a-b} so in this case \frac{k}{k^4}=\frac{k^1}{k^4} =k^{1-4}=k^{-3}=\frac{1}{k^3}

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