Simplify using long division. (Remember to show all your work.)

Mathematics

1 answer:

Leokris [45]3 years ago

6 0

. 8x²+20x
. ______________ first, try to solve the first one...
x-3 ) 8x³ - 4x² -36x -72 so mult x AND -3 by 8x²
. 8x³ -24x² (remember it is substract not add)
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. 20x²-36x-72 Now try to solve the first one again..
. 20x²-60x
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24x-72 Now it is simplified

24x=72
x=3 answer is 3

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Answer step by step

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Consider, please, this solution/explanation:
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3. according to the condition in one car are 3x persons, in one bus are 27y persons, and totaly 3x+27y=408 people. This is the 2d equation.
4. if to solve the system of two equations:
$\left \{ {{x+y=32} \atop {3x+27y=408}} \right. \ =\ \textgreater \ \ \left \{ {{x=19 (cars)} \atop {y=13(buses)}} \right.$

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Step-by-step explanation:

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