Question

Let F(x) = 6x^2 - 5 and g(x) = 2x - 1Find f • g

Answer 1

Answer:  f·g(x) = 12x³ - 6x² - 10x +5

               fog(x) = 24x² - 24x + 1

Step-by-step explanation:

f(x) = 6x² - 5      g(x) = 2x - 1

f·g(x) = (6x² - 5)(2x - 1)

       = 6x²(2x - 1) - 5(2x - 1)

       = 12x³ - 6x² - 10x + 5

fog(x) = f(2x-1)

         = 6(2x - 1)² - 5

         =6(4x² - 4x + 1) - 5

         = 24x² - 25x + 6 - 5

         = 24x² - 25x + 1

               

I wasn't sure if you wanted multiplication or composition so I solved both.