Question

Given that f(x)=3x2+2x-1 and h(x)=3x-5, find f(4)-h(5)

Answer 1

45

Explanation:

f(4) = 3(4²) + 2(4) -1

f(4) = 48+8-1 or 55

h(5) = 3(5)-5

h(5) = 10

55-10=45