Jawabanmu

2014-08-18T22:52:37+07:00
1. X ^3-(-1) Y^-5-(-6) Z^7-1 = X^4 Y^1 z^6

2. X^5.7 - 20   Y ^4.(-3) - 7 =X ^35-20 Y^ -12-7

= X^15 Y^-19

KET
^ = PANGKAT