diketahui f(x)=l10-2xl dan g(x)=l2x+6l tentukan nilai: f(-4)xg(-4)-(f(10)²

f(-4) = |10 - 2(-4)| = |10 - (-8)| = |10 + 8| = |18| = 18
g(-4) = |2x + 6| = |2(-4) + 6| = |-8 + 6| = |-2| = 2
f(10) = | 10 - 2(10)| = |10 - 20| = |-10| = 10
(f(10))^2 = 100
Sehingga diperoleh
f(-4) x g(-4) - (f(10))^2 = 18 x 2 - 100 = 36 - 100 = -64