2 years ago

1. -7/9 • 3/5

Mathematics

1 answer:

ASHA 777 [7]2 years ago

5 0

The answer to the question

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What are two expressions that have GFC of 8xy

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16xy, 24x^2y^2 are two expressions with gcf of 8xy.

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2 years ago

-4=b/2 a)-8 b)-2 c)2 D)8

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3 years ago

One number is 9 more than another. if the sum of the two numbers is 171, find the two numbers

allochka39001 [22]

Let x be the 1st number
x + 9 be the second number

Equation:
x + x+9 = 171

Solution:
2x + 9 = 171
2x = 171 - 9
2x = 162
x = 81
x + 9 = 90

81 + 90 = 171

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2 years ago

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juin [17]

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3 years ago

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Marizza181 [45]

With some simple rearrangement, we can rewrite the numerator as

$2x^3 - 3x^2 - x + 4 = 2(x^3 - x) - 3x^2 + x + 4 \\\\ ~~~~~~~~ = 2x(x^2-1) - 3(x^2 - 1) + x + 1 \\\\ ~~~~~~~~ = (2x-3)(x^2-1) + x+1$

Then factorizing the difference of squares, $x^2-1=(x-1)(x+1)$ , we end up with

$\dfrac{2x^3 - 3x^2 - x + 4}{x^2 - 1} = \dfrac{(2x-3)(x-1)(x+1) + x+1}{(x-1)(x+1)} \\\\ ~~~~~~~~ = \boxed{2x-3 + \dfrac1{x-1}}$

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1 year ago