Sederhanakan (1-8)4) x (1-8)3)4 di bagi (-8)9

(1–8)4) x (1–8)3)4 : (–8)9
=–7(4) x (–7)(3)4 : (–72)
=–28 x (–84) : (–72)
=–32,67
semoga membantu