Diketahui f(X) = x²+3x-5 dan g(x) = 2x²+x+2. Jika h(x) = 5f(x)-3g(x),nilai h'(-3)=

h(x) = 5 f(x)- 3 g(x)
h(x) = 5(x²+3x-5) - 3(2x²+x+2)
h(x) = 5x²+15x-25 - (6x²+3x+6)
h(x) = -x² + 12x - 31
h'(x) = -2x + 12
h'(-3) = -2(-3)+ 12
h'(-3) = 6 + 12 = 18

semoga membantu