Question

NEED HELP ASAP!!!!!

Simplify:

21. (-y + 4)(2y - 1)

Answer 1

is there multiple choice?

Answer 2

Yes.

A. 2y^2 + 7y + 3
B. 2y^2 + 5y - 4
C. -2y^2 + 9y - 4
D. -2y^2 + 6y + 3

Answer 3

Well, what I usually do is I replace the "y" with a number (5 usually). Then I solve the problem and the multiple choices. If one of the multiple choices matches the problem then that is the answer.

If that is too confusing then I will explain it better. :)

Answer 4

Please explain.

Answer 5

Ok. Write down the problem on paper, but replace the "y" with the number 5.

Answer 6

(-5 + 4)(2*5 - 1)

Answer 7

Good! Now I believe you can solve this, right?

Answer 8

Not really. Having to do three things at once. But would the answer be C?

Answer 9

I will check.

Answer 10

Yes, the answer is C. Great Job!! :)

Answer 11

Thank you for all your help. You have been more than helpful.

Answer 12

Aww. You're welcome! Technically speaking you found the answer! ;)