SOLUTION: Evaluate b^2-4b(2x+y)-5x if b= 4, x= 3 , y= -8

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Question 807343: Evaluate b^2-4b(2x+y)-5x if b= 4, x= 3 , y= -8
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
b%5E2-4b%282x%2By%29-5x

4%5E2-4%2A4%282x%2By%29-5x Plug in b = 4

4%5E2-4%2A4%282%2A3%2By%29-5%2A3 Plug in x = 3

4%5E2-4%2A4%282%2A3%2B%28-8%29%29-5%2A3 Plug in y = -8

16-16%286-8%29-15

16-16%28-2%29-15

16%2B32-15

33


So, b%5E2-4b%282x%2By%29-5x=33 when b = 4, x = 3, y = -8