Tgs 2
Diketahui fungsi polinom f(x) = 2x – 4 dan g(x) = 3x2 + 5x – 6 .(a) f2(x) – g(x)
Jawab :
(b) f2(x) – g(x) = (2x – 4)2 – (3x2 + 5x – 6)
= (4x2 – 16x + 16) – (3x2 + 5x – 6)
= 4x2 – 16x + 16 – 3x2 – 5x + 6
= 3x2 – 3x2 – 16x –5x + 16 + 6
= x2 – 21x + 22