SOLUTION: f(x)=-xsquared-3x+5 f(-6)

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Question 93232: f(x)=-xsquared-3x+5
f(-6)
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
f%28x%29=-x%5E2-3x%2B5 Start with the given polynomial


f%28-6%29=-%28-6%29%5E2-3%28-6%29%2B5 Plug in x=-6


f%28-6%29=-36-3%28-6%29%2B5 Evaluate %28-6%29%5E2 to get 36

f%28-6%29=-36-3%28-6%29%2B5 Multiply -1 and 36 to get -36

f%28-6%29=-36%2B18%2B5 Multiply -3 and -6 to get 18

f%28-6%29=-13 Now combine like terms