nilai M??? plis bantuin lg ya .pakai caranya

[tex]g( - 1) = {( - 1)}^{2} + 4( - 1) - 9 \\ g( - 1) = 1 - 4 - 9 = - 12[/tex]

[tex]g(0) = {(0)}^{2} + 4(0) - 9 \\ g(0) = 0 + 4 - 9 = - 9[/tex]

m = g(-1) - g(0)
m = -12 - 9
m = -21

jawabannya a