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mash [69]
4 years ago
15

The answers to this question

Mathematics
1 answer:
BartSMP [9]4 years ago
4 0

Answer:

See explanation

Step-by-step explanation:

The discriminant is {b^{2}-4ac }

1. 9² - 4(1)(20) = 81 - 80 = 1 so there are 2 solutions

2. (-9)² - 4(3)(-13) = 81 + 156 = 237, so there are 2 solutions

3. The first answer is correct

4. The third answer is correct

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Answer:

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3a+3b,for a=2 and b=4
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3 0
3 years ago
How to solve y = 8x - 9
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6 0
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Read 2 more answers
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