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zepelin [54]
3 years ago
5

Simplify: (x^2+2x-1)-(x+1)

Mathematics
2 answers:
n200080 [17]3 years ago
8 0

Answer:

x² + x - 2

Step-by-step explanation:

Simplify the following:

\longrightarrow (x² + 2x - 1) - (x + 1)

-(x + 1) = -x - 1:

x² + 2x - 1 - x - 1

Grouping like terms,

x² + 2x - 1 - x - 1 = x² + (2x - x) + (-1 - 1):

\longrightarrow x² + (2x - x) + (-1 - 1)

2x - x = x:

\longrightarrow x² + x + (-1 - 1)

-1 - 1 = -2:

\longrightarrow x² + x - 2

notka56 [123]3 years ago
6 0

Answer:

x^2+x-2

this is the answer bc the 2nd parentheses is being multiplied by the negative  sign meaning you need to subtract it from the 1st parentheses.

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One factor of the polynomial 3x3 + 20x2 - 21x + 88 is (x + 8). what is the other factor of the polynomial? (note: use long divis
Snezhnost [94]

The other factor of the polynomial is a. 3x2-4x+11

Given polynomial is 3x3 + 20x2 - 21x + 88 and the factor is (x+8)

We need to find another factor using long division method

So,

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Therefore,

\sqrt[x+8]{3x^3+20x^2-21x+88}

Now calculating

First multiplying 3x^2 with (x+8) so , 3x^2 will be in the quotient

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simplifying the calculation for 3x^3+20x^2 and 3x^3+24x^2

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We get 11x +88 as a remainder

The quotient we get is 3x^2-4x

Third we will multiply +11 with (x+8) Where +11 will be in the quotient

we get 11x+88

Simplifying the equation we get the remainder 0

So the quotient we get is  (3x2 - 4x+11)

Hence the another factor of the polynomial is  (3x2 - 4x+11)

Learn more about Long division method here

brainly.com/question/22153164

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2 years ago
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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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