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3 years ago

10

A true-false test consists of 50 questions. how many does a student have to get right to convince you that he is not merely gues

sing Explain

1 answer:

umka2103 [35]3 years ago

7 0

Hmmm. 20 or 30 so the teacher will count the rest,if a student guessed, wrong or right

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Use long division to divide x^3+x^2-2x+14 by x+3

bekas [8.4K]

First, $x^3=x^2\cdot x$ , and if we multiply $x+3$ by $x^2$ we get

$x^3+3x^2$

Subtracting this from the numerator gives a remainder of

$-2x^2-2x+14$

Next, $-2x^2=-2x\cdot x$ , and if we multiply $x+3$ by $-2x$ we have

$-2x^2-6x$

and subtracting this from the previous remainder, we end up with a new remainder of

$4x+14$

Next, $4x=4\cdot x$ , and if we multiply $x+3$ by $4$ we get

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Subtracting from the previous remainder, we get a new remainder of

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which contains no more factors of $x$ , so we're done.

So,

$\dfrac{x^3+x^2-2x+14}{x+3}=x^2-2x+4+\dfrac2{x+3}$

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BigorU [14]

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3 years ago

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Answer:

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3 years ago

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max2010maxim [7]

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