SOLUTION: Let f(x) = 3x^3 + 8x^2 + 5x - 7. Use synthetic division to find f(-2). Thank u for giving me the answer for the first problem & you don't have to do number 3 because you alread

Algebra ->  Functions -> SOLUTION: Let f(x) = 3x^3 + 8x^2 + 5x - 7. Use synthetic division to find f(-2). Thank u for giving me the answer for the first problem & you don't have to do number 3 because you alread      Log On


   

Question 1156629: Let f(x) = 3x^3 + 8x^2 + 5x - 7. Use synthetic division to find f(-2).
Thank u for giving me the answer for the first problem & you don't have to do number 3 because you already did it for me. Thanks again!
Answer by josgarithmetic(39838) About Me  (Show Source):
You can put this solution on YOUR website!
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3x^3 + 8x^2 + 5x - 7. Use synthetic division to find f(-2).
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f(-2) as if checking for possible factor of f, x+2. 

-2    |     3    8    5     -7
      |
      |         -6   -4     -2
      |_____________________________
            3    2    1    -9

result: 3x%5E2%2B2x%2B1-9%2F%28x%2B2%29