jika f(x)=x²+2x-3 dan g(x)=2x -5.jika nilai (f°g)(-2)=

f (x) = x^2 +2x -3
fog(-2) = f { g(-2) }
= f ( 2.-2 + 5)
= f (-4 + 5)
= f (1)
= 1^2 + 2(1) -3
= 1 +2 -3
= 0
fog (-2) = 0

(f•g) (-2) = f ( g (-2) )
= f ( 2 (-2) -5 )
= f (-9) > masukkan persamaan f (x)
= (-9)² + 2 (-9) - 3
= 81 - 18 - 3
= 60
Bismillah... Semoga membantu :)