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Alik [6]
3 years ago
10

Divide 2(x^4 +9) by x(x^2 +1)

Mathematics
1 answer:
kozerog [31]3 years ago
7 0

1. We need to perform a division by multiplying the dividend with the reciprocal of the divisor. We can apply this rule:

  • (\frac{A}{B})/(\frac{C}{D} )=(\frac{A}{B}) (\frac{C}{D})

In the problem... 2(x^4 +9)/x(x^2 +1)

  • A = 2(x^4+9)
  • B = 1
  • C =x(x^2+1)
  • D = 1

2(x^4 +9)/x(x^2 +1) changes to (2(x^4+9))(\frac{1}{x(x^2+1)}

2. We need to get rid of all the parenthesis in this term. (2(x^4+9))(\frac{1}{x(x^2+1)}

  • All negative factors will change the sign.
  • In the problem (2(x^4+9))(\frac{1}{x(x^2+1)} there isn't any negative factors. So the sign will not change.

(2(x^4+9))(\frac{1}{x(x^2+1)} is now 2(x^4+9)(\frac{1}{x(x^2+1)}

3. Lastly, we need to perform a multiplication.

  • We can use this rule: \frac{A}{B} C=\frac{AC}{B}
  • In the problem 2(x^4+9)(\frac{1}{x(x^2+1)} the new factors on the numerator are: 2, (x^4+9), 1
  • Notice that all non-fraction factors are placed in the numerator.
  • The new factors in the denominator are: x, (x^2+1),

Therefore, the answer is:  \frac{2(x^4+9)}{x(x^2+1)}

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