SOLUTION: Please help me evaluate this expression when x= -2 and y= 3. 2(x-y)^2 I did this two different ways and one time i got -10 and the other time i got 50. i don't know which to dis

Algebra ->  Expressions-with-variables -> SOLUTION: Please help me evaluate this expression when x= -2 and y= 3. 2(x-y)^2 I did this two different ways and one time i got -10 and the other time i got 50. i don't know which to dis      Log On


   

Question 6947: Please help me evaluate this expression when x= -2 and y= 3.
2(x-y)^2
I did this two different ways and one time i got -10 and the other time i got 50. i don't know which to distribute first, the 2 or the exponent. thanks!
Answer by longjonsilver(2297) About Me  (Show Source):
You can put this solution on YOUR website!
2%28x-y%29%5E2
2%28-2-3%29%5E2
2%28-5%29%5E2

this now says 2 multiplied by the square of -5

2*25
= 50

jon.