Answers

2016-06-20T18:44:33+08:00
The answer is  b^{2} -6b+8.
First multiply b and b, it will then give you  b^{2} .
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:  b^{2} -6b+8.
0