3. Find (f - g)(x) if f(x) = √16x4 and g(x) = 3x²-3x - 5.
O (f-g)(x) = x² + 3x +5
O (ƒ- g)(x) = 7x² - 3x - 5
O (f-g)(x) = 3x²+x-5
O (f-g)(x) = -3x² +7x+5

3 Find f gx if fx 16x4 and gx 3x3x 5 O fgx x 3x 5 O ƒ gx 7x 3x 5 O fgx 3xx5 O fgx 3x 7x5 class=