SOLUTION: For the polynomial below, find F(-2). F(X)= -4x(exponent)2+3x-1

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: For the polynomial below, find F(-2). F(X)= -4x(exponent)2+3x-1      Log On


   

Question 144746: For the polynomial below, find F(-2).
F(X)= -4x(exponent)2+3x-1
Answer by vleith(2983) About Me  (Show Source):
You can put this solution on YOUR website!
Given F%28x%29+=+-4x%5E2%2B3x-1
Find F(-2)
Insert -2 for x everywhere in the expression
F%28-2%29+=+-4%28-2%29%5E2%2B3%2A%28-2%29-1
F%28-2%29+=+-4%2A4%2B+%28-6%29+-1
F%28-2%29+=+-16+-6-1
F%28-2%29+=+-23