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patriot [66]
3 years ago
10

PLEASE HELP FAST WITH THIS MATH

Mathematics
1 answer:
salantis [7]3 years ago
5 0
Yes yes no no yes is the answer
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Add the following polynomials, then write the answer in descending powers of x
Margarita [4]

Answer:

5x^3-4x-1

Step-by-step explanation:

https://www.symbolab.com/solver/step-by-step/2x%5E%7B3%7D%2B4x-6%20%2B%203x%5E%7B3%7D-8x%2B7

I use symbolab, it's the best calculator for everything. Hope this helps!

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2 years ago
8+–5+–7w+6w <br><br><br><br> answer- please-
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8-5-7w+6w

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2 years ago
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7 0
3 years ago
I only need the answer to question B
nalin [4]

Answer:

x=5

y=1

Step-by-step explanation:

The substitution method is considered easier because of its simplification.

2x-3y=7 (1)

x+2y=7 (2)

considering equation (2),

x = 7 - 2y (3)

using the value of "x" in (1)

2 (7-2y) - 3y=7

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substituting this value of "y" in (3)

x = 7- 2(1)

x = 5

3 0
3 years ago
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