Jawabanmu

2014-08-30T20:19:20+07:00
Jawaban paling cerdas!
2014-08-30T20:19:46+07:00
A²+10a+25 =(a+5)²
x²-18x+81 = (x-9)²
4a²+12ab+9b² =(2a+3b)²
16x²-56xy+49y² =(4x-7y)²
4p²+4pq+q² =(2p+q)²
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