diketahui f(x)=x2-3 hitung f(-2),f(0),f(1),dan f(3)

F(-2) = (-4)-3
= -7

f(0) = -3
f(1) = 2-3
=-1

f(3)= 6-3
=3

itu kalo bentuknya x2-3

tapi kalo yg dimaksud x^2, sama aja caranya, substitusikan bilangan ke x

f (x) = x²-3
f (-2)  =(-2)²-3
f (--2) = 4-3
f (-2) = 1

f(x) = x²-3
f (0) =0²-3
f (0) = 0-3
f (0) = -3

f (x) = x²-3
f (1) = 1²-3
f (1) = 1-3
f (1) = -2

f (x) = x²-3
f (3) = 3²-3
f (3) = 9-3
f (3) = 6