Use synthetic division to find f(c).

Question

f(x) = 0.4x³ + 0.6x;    c = −0.2

f(−0.2) =

Answer 1

f(c) = .4(-.2)^3 + .6(-.2) = - .0032 -.12 = -.1232

f(c) = (2/5)(-1/5)^3 -(3/5)(1/5) = -2/625 -3/25 = -(2+75)/625 = -77/625 = -.1232