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Mashutka [201]
3 years ago
13

How can models and equation help me subtract like fractions?

Mathematics
1 answer:
tino4ka555 [31]3 years ago
5 0

Answer:

You don't need "models and equations"; if the denominator is the

same, just subtract the numerators.

Step-by-step explanation:

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The school band is ordering health bars to sell for a fundraiser. The company that sells the bars charges $0.40 per bar plus $20
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Hey, can I please get some help with this? It shouldn’t be too hard, thanks!
Fynjy0 [20]

Answer:

  • (x -3)(x+3)(2x +1)
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Step-by-step explanation:

A) 2x³ +x² -18x -9 = x²(2x +1) -9(2x +1) = (x² -9)(2x +1) = (x -3)(x+3)(2x +1)

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B) x³ +3x² -x -3 = x²(x +3) -1(x +3) = (x² -1)(x +3) = (x -1)(x +1)(x +3)

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C) 4x³ -16x² -x +4 = 4x²(x -4) -1(x -4) = (4x² -1)(x -4) = (2x -1)(2x +1)(x -4)

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In each case, the third-level factoring mentioned in step 4 is the factoring of the difference of squares: a² -b² = (a -b)(a +b).

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The step-by-step is exactly what you need to do. It is simply a matter of following those instructions. You do have to be able to recognize the common factors of a pair of terms. That will be the GCF of the numbers and the least powers of the common variables.

7 0
2 years ago
The net of a triangular prism and its dimensions are shown below. What is the total surface area of the prism? a) 54 m squared b
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Answer:

✧・゚: *✧・゚:*    *:・゚✧*:・゚✧    

 

✅ I will have the file for the answer key below!

~ ₕₒₚₑ ₜₕᵢₛ ₕₑₗₚₛ! :₎ ♡  

~

Download pdf
4 0
2 years ago
Read 2 more answers
How to solve this help pls
Valentin [98]

Answer:

2x^{2} +\frac{7}{x}

Step-by-step explanation:

divide each by x

7 0
2 years ago
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