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julsineya [31]
3 years ago
14

8. Multiply 7c? (a? + 5b + 7c). ? = To the second power

Mathematics
1 answer:
Travka [436]3 years ago
3 0
I’m not sure if this is correct but i got, 7c^2c^2 + 49c^4 + 35bc^2
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