3 years ago

27a-(3b-(2a-(4a-c)+6a (2a+3b-c)

Mathematics

1 answer:

lawyer [7]3 years ago

3 0

Answer:

12a^2+18ab-6ac+25a-3b+c

Step-by-step explanation:

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Answer: $0=2x^2-7x-9\\0=4x^2-3x-1\\0=x^2-2x-8$

Step-by-step explanation:

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1. a=2, b= -7, c=-9

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So it has only 1 real number solution.

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So it has 2 real number solutions.

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