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2 years ago

100 POINTS multiply: (2x+1)(x^2-3x-2)

Mathematics

2 answers:

denis-greek [22]2 years ago

7 0

Answer:

$2x^3-5x^2-7x-2$

Step-by-step explanation:

1) Expand by distributing sum groups.

$2x(x^2-3x-2)+x^2-3x-2$

2) Expand by distributing terms.

$2x^3-6x^2-4x+x^2-3x-2$

3) Collect like terms.

$2x^3+(-6x^2+x^2)+(-4x-3x)-2$

4) Simplify.

$2x^3-5x^2-7x-2$

Thanks!

- Eddie

Vladimir79 [104]2 years ago

6 0

Step-by-step explanation:

Sorry for writing BTS Army but I do lov* them all...

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leonid [27]

Answer:

The answer to your question is 7 and -1/7

Step-by-step explanation:

Data

First line Second line

B (4, 4) A (0, 1)

M (3.5, 0.5) C (7, 0)

Formula

Slope = m = (y2 - y1) / (x2 - x1)

Process

1.- Calculate the slope of the first-line

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2.- Calculate the slope of the second line

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m = -1/7

-Result

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3 years ago

Write a polynomial in standard form that represents the area of the shaded region.

mr_godi [17]

Area of rectangle is $2x^2+x-45$

Step-by-step explanation:

Given:

Length of rectangle = 2x-9

Width of rectangle = x+5

Required:

Area of rectangle

Formula:

$Area\,\,of\,\,rectangle=Length*Width$

Putting values of length and width:

$Area\,\,of\,\,rectangle=Length*Width\\Area\,\,of\,\,rectangle=(2x-9)(x+5)\\Area\,\,of\,\,rectangle=2x(x+5)-9(x+5)\\Area\,\,of\,\,rectangle=2x^2+10x-9x-45\\Area\,\,of\,\,rectangle=2x^2+x-45$

So, Area of rectangle is $2x^2+x-45$

Keywords: Area of rectangle

Learn more about Area of rectangle at:

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176 / 69,120 = 0.0025462962963 (0.003 if needing to round)

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