SOLUTION: If a^2-2ab+b=36 and a^2-3ab+b^2=22, find ab. The choices the book gave me are 6, 8, 12, and 14. This is from section adding and subtracting polynomials.

Algebra ->  Test -> SOLUTION: If a^2-2ab+b=36 and a^2-3ab+b^2=22, find ab. The choices the book gave me are 6, 8, 12, and 14. This is from section adding and subtracting polynomials.      Log On


   



Question 434439: If a^2-2ab+b=36 and
a^2-3ab+b^2=22, find ab.
The choices the book gave me are 6, 8, 12, and 14.
This is from section adding and subtracting polynomials.

Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
I think you meant a%5E2+-+2ab+%2B+b%5E2+=+36, in which case, by subtracting the 2nd equation from the first, you get ab = 14.