Jawabanmu

2014-08-03T10:28:22+07:00
1.)(-2/3)⁴x(1/2-1/6)²=(-2/3)⁴x1/3²
=2⁴.3-⁴.3-²=2⁴.3'-6
2.)(-5)³x(1/15)²x(10/3)⁴x(9/5)'5
=-(5³)x(1/5.1/3)²x(5.2/3)⁴x(9.1/5)'5
=-(5³)x(5-².3-²)x(5⁴.2⁴.3-⁴)x(9'5.5'-5)
=-(5²)x(3⁴)x(2⁴)
=-(4.9.5)²=-(180)²=-32400
3.){(2/3 X)².(3/4).(-Y)³}/3XY²
=(2².3-².X²).(3.2-²).-Y³/3xy²
=-3-¹X²Y³/3xy²=-1/9XY
=-1/9.1/2.1/3=-1/54