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PIT_PIT [208]
3 years ago
12

(27x^4-18x^3+9x^2) divided by 3x

Mathematics
2 answers:
IrinaK [193]3 years ago
7 0

Answer:

9x^3-6x^2+3x

Step-by-step explanation:

We have the following:

\frac{27x^4-18x^3+9x^2}{3x}

which can be separeted like this:

\frac{27x^4}{3x} -\frac{18x^3}{3x} +\frac{9x^2}{3x}

and using the rule:

\frac{x^m}{x^n}=x^{m-n}

in other words we substract the exponents at the moment we make the division, and also dividing the coefficients  (\frac{27}{3} =9,\frac{18}{3} =6, \frac{9}{3} =3) we get the following:

9x^{4-1}-6x^{3-1}+3x^{2-1}\\=9x^3-6x^2+3x

the answer is: 9x^3-6x^2+3x

klio [65]3 years ago
5 0

9x^3-6x^2+3x

Basically with this you just wanna simplify each term one-by-one.

For instance, look at the first term, 27x^4

Imagine 27x^4/3x

3 goes into 27 9 times, and x goes into x^4 4 times (cuz x to the power of 4 is just x times x times x times x)

So you’re left with 9x^3

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We have
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ycow [4]

Answer:

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Step-by-step explanation:

plug 7 in for x

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IgorLugansk [536]

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\huge\boxed{4x}

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