Question

pra agora tropas pfvvvv

Answer 1

Resposta:

1-  x=3

f(3)= 3-x²

f(3)=3-3²

f(3)=3-9

f(3)=-6

2- a=4 b =1

y=a²-5b

y=4²- (5.1)

y=16 - (5)

y= 16-5

y=11

3- x=4

f(4)=5.4-8

f(4)=20-8

f(4)=12