Question

If g(x) = x²-x, then g(t-1) =

Answer 1

g(t - 1) = t² - 3t + 2

Explanation:

substitute x = t - 1 into g(x) , that is

g(t - 1)

= (t - 1)² - (t - 1) ← expand squared factor using FOIL

= t² - 2t + 1 - t + 1 ← collect like terms

= t² - 3t + 2