Question

If c(x) = 2x^2 - 4x + 3

17. c(3a)
18. c(b^2)

Answer 1

Put the function argument where the variable is, then simplify where possible.

17. c(3a) = 2(3a)^2 -4(3a) +3
.. = 18a^2 -12a +3

18. c(b^2) = 2b^4 -4b^2 +3