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Mandarinka [93]
3 years ago
15

Idk how to do this and I need it in an hour

Mathematics
1 answer:
olchik [2.2K]3 years ago
4 0

Answer:

a) 2x^2+8-5x+-3x^2-4+7x\\\\= -1x^2+2x+4

b) 2x^2+8-5x--3x^2-4+7x\\\\= 5x^2+2x+4

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What is equal to 22%?
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Step-by-step explanation:

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What is 11/12 minus 3/8
Mrac [35]

Answer: \frac{13}{24}

Step-by-step explanation: 11/12 - 3/8

1. First, we will find a common denomenator. It needs to be the least common factor, or the answer will not be in its simplist form. Let's take a look at the multiples of 12 and 8.

12: 12, 24, 36, 48, 60, 72, 84, 96

8: 8, 16, 24, 32, 40, 48, 56, 64, 72

2. Next, we will choose the smallest common multiple. That would be 24.

3. Now, we will work this out.

11/12 = 22/24

3/8 = 9/24

4. Subtract.

22/24 - 9/24

= 13/24

= \frac{13}{24}

I found the denomenators by multiplying.

Hope this answer helped!

8 0
3 years ago
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