Question

Dada a função real definida por f(x) = x² - 3x , determine : a) f(1) , B) f(-1) , C) f(3) e D) f(2) - 3 f(-2)

Answer 1

a)1-(3.1)
1-3
-2
b)1-(3.(-1))
1+3
4
c)(3.3)-(3.3)
9-9
0
d)(2.2)-(3.2)
4-6
-2
e)(-2.(-2))-(3.(-2))
4+6
10