Question

Sixth Grade algebra help?

Medal+fan for helpful answer

Evaluate:
\[x ^{2} -2xy-y ^{2}\] for x=-2 and y=3

Answer 1

\[-2^{2}-2(-2)(3)-3^{2}\]

Answer 2

\[4+12-9\]

Answer 3

16-9= 7

Answer 4

How did you get that? I kept getting -1.

Answer 5

from where

Answer 6

Im not sure I kept working -4 -2(-6)-9

Answer 7

wait....that wouldn't be -1..i dunno what I kept doing but I got it wrong on my homework.

Answer 8

Well thanks anyway :)

Answer 9

\[-2^{2}=4 and -2(-2)(3)=12and -3^{2}=9\]