SOLUTION: Given f of x = 2x(to the 3rd)-7x(squared)+9x-3, us the remainder theorem (synthetic division) to find f of (-4).

Algebra ->  Rational-functions -> SOLUTION: Given f of x = 2x(to the 3rd)-7x(squared)+9x-3, us the remainder theorem (synthetic division) to find f of (-4).      Log On


   



Question 62483: Given f of x = 2x(to the 3rd)-7x(squared)+9x-3, us the remainder theorem (synthetic division) to find f of (-4).
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Given f of x = 2x(to the 3rd)-7x(squared)+9x-3, us the remainder theorem (synthetic division) to find f of (-4).
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f(x)=2x^3-7x^2+9x-3
f(-4)=2(-4)^3-7(-4)^2+9(-4)-3
= -279
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Using synthetic division:
-4 ) 2 -7 9 -3
2 -15 69 | -279
Cheers,
Stan H.