Jawabanmu

2014-09-10T17:03:46+07:00
(a+b)(a-b)= a2 - b2
(a+b)2 = a2 + 2ab + b2

*2 = kuadrat





(a+b)3 = a3 + 3a2b + 3ab2 + b3 <2 = kuadrat>
2014-09-10T17:06:31+07:00
(a+b)(a-b)= a4 - b4
(a+b)4 = a4 + 4ab + b4

jawabannya= 4 kadrad