Question

dada a funçao y = xelevado a 2 + 2x calcule f(-2) f(3)
dada a funçao y = - xelevado a 2- 3x +6 calcule f(2) f(-1)

Answer 1

y=x^2+2x

f (-2) = (-2)^2+2.(-2)
4-4
0

f (3) = 3^2+2.3
9+6
15

y=-x^2-3x+6

f (2) -2^2-3.2+6
-4-6+6
-4

f (-1) -(-1)^2-3.(-1)+6
1+3+6
10