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Mekhanik [1.2K]
4 years ago
12

I really need help I’m very confused

Mathematics
1 answer:
Vaselesa [24]4 years ago
6 0

Answer:

10: -11n^5

12: 6k^2 -6k+7

Step-by-step explanation:

Ok so what your gonna do is add or subtract the ones with the same exponent.

so -15+4= -11 since they are both n^5 you can add them so your answer is:

-11n^2

now you have 8k^2-k-5k+7-2k. so you are gonna rearrange them so the same exponents are together.(keep the sign in front in front, if no sign it is positive)

8k^2-2k^2-5k-k+7

add like exponents

6k^2-6k+7

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5 0
3 years ago
Read 2 more answers
Need the answer asap!!!!! 63 points!!!!
nekit [7.7K]

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A

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4 0
3 years ago
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An architect uses a scale of 1 inch equal to 3 feet. The actual porch is being built is 8 feet by 20 feet.
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7 0
3 years ago
Please help! ASAP thank you
marissa [1.9K]
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a=6   b=4   c=?

6^2+4^2=?
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Indira finds that on a typical day, 4 out of every 5 students at her school eat a cafeteria lunch. The rest of the students brin
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3 years ago
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