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PIT_PIT [208]
3 years ago
11

When x = 4, y = 1 x^2 + 3xy – 7y^2

Mathematics
1 answer:
densk [106]3 years ago
4 0

Answer:

21

Step-by-step explanation:

i worked out the problem

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Answer:

Step-by-step explanation:

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Step-by-step explanation:

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Step-by-step explanation:

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3 years ago
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BabaBlast [244]

Answer:

Below.

Step-by-step explanation:

I'll do number 20, 21, 22 for you.

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