tolong bantu bentar ap jwab ini

b) (f+g) (x) =f(x) + g(x)
=√x²-4 + √x-2
=x³-4+(-2)
=x³-2

c) (fxg) (x) =f(x) x g(x)
=√x²-4 x √x-2
=x³-4-2
=x³-2

a) (f-g) (x) = f(x) - g(x)
=√x²-4 - √x-2
=x³-4-(-2)
=x³-6

maaf bila salah