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VMariaS [17]
3 years ago
14

What is the simplified form of 3/4x+3+21/8x^2-14x-15

Mathematics
1 answer:
creativ13 [48]3 years ago
6 0

Solution:

We have been asked to find the simplified expression of

3/4x+3+21/8x^2-14x-15=\frac{3}{4x+3} +\frac{21}{8x^2-14x-15}\\ \\ \text{We will have to make the denominator equal to add}\\ \\ \ 8x^2-14x-15=8x^2+6x-20x-15\\ \\ \ =2x(4x+3)-5(4x+3)=(4x+3)(2x-5)\\ \\  \frac{3}{4x+3} +\frac{21}{8x^2-14x-15}=\frac{3}{4x+3} +\frac{21}{(4x+3)(2x-5)}\\ \\ =\frac{3(2x-5)+21}{(4x+3)(2x-5)}\\ \\ =\frac{6x-15+21}{(4x+3)(2x-5)} \\ \\ =\frac{6x+6}{(4x+3)(2x-5)} \\

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Answer:

280.19 ft³

Step-by-step explanation:

1. put value of "pie".

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3. 4³=64

4. multiply all the upper number=5632

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7 0
2 years ago
Please Help Me!!! ASAP
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Answer:

x= 8

Below is the diagram.

Step-by-step explanation:

Given,

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Therefore on simplifying we get x= 8

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4 years ago
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Answer:

Represents

Step-by-step explanation:

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5 0
3 years ago
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Answer:

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Step-by-step explanation:

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3 years ago
What can you say about the end behavior of the function ?
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so we've got f(x)=-4x^6+6x^2-52
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so both ends point down
goes from bottom left to bottom right

B and D are the answers
3 0
4 years ago
Read 2 more answers
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