g(x) = -2x + 1
a). (f+g) (x)
b). (f-g) (x)
c). (f.g) (x)
d). (F/g) (x)
Dik : f(x) = X²
Penjelasan dengan langkah-langkah:
a) (f+g) (x) = f(x)+g(x)
= x²+ (-2x +1)
= x²- 2x + 1
= (x-1) (x-1)
b (f-g)(x) = f(x)- g(x)
= x²- (-2x +1)
= x²+2x -1
c) (f.g)(x) = f(x).g(x)
= x²(-2x + 1)
= -2x³ + x²