2 5 x 10 2 4 July 8, 2019 16 32 64 128 (( 5 x 2 10 4 3 2 /- 5 x 10 - 1 4 4x * 10 2 5 * x * 10 2 10 2 5 x 6 2 /( 8 4 )) 2 9 10 x 4 2 5 2 5 x 9 10 )=- 2 3 4 2 5 x 10 pangkat 4 2 5 10 x 40 2 5 x 10^4 2 5 x 10-2 2 x 2 5