Hello from MrBillDoesMath!
Answer: 39
Discussion
:
Per the author, f(x) = 3x^2 - 5x - 3 and we want to determine f (-3)
Set x = -3 in the defining equation:
f(-3) =
3 (-3)^2 - 5 (-3) - 3 =
3*9 + 5 *3 - 3 = as (-3)^2 = + 9 and -5 * -3 = + 15
27 + 15 - 3 =
39
Regards, MrB
