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## Answers

First multiply b and b, it will then give you .

Then multiply b and -4, that will give you -4b.

Third multiply b and -2, that will give you -2b.

Since -4b and -2b are with the same variable you can add them which will give you -6b.

Then multiply -4 by -2, which will give you 8 as a result.

Then arrange and will finally give you the answer: .