d. 1/a3bc-4
= 1/a3 x b x 1/c-4
= 1/a3 x b x c4/1
= c4/a3b

Soal 6

a. 18t3 x 2t-3
= 18 x 2.t3+(-3)=0
= 36.1
= 36

b. 2y0t3/y6t-2
= 2y0-6
=-6t3-(-2)=5
= 2t5/y6.

c. 2m0 x m-7
= 2m0+(-7)=-7
= 2m-7.

d. m3 + 4/m-3
= m3 + 4m3
= 5m3.

Soal 7

d-5 = 1/d x 1/d x 1/d x 1/d x 1/d = 1/d5

pernyataan tersebut salah karena d-5 artinya 1/d5.

Soal 8

Diketahui panjang rusuk AB= 1 cm, BC = 5 cm, dan CG = 4 cm.

Ditanya panjang diagonal?

Jawab: √(AB2 + BC2 + CG2) → AG
= √122 + 52 + 42 → AG
= √144 + 25 + 16 = √185

Soal 9

30 box x 30 rim = 900 rim