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2) a^2+4ab+4b^2=0
keterangan ^ itu pangkat ya.
3a x -5 +2 = -13a
2 x -5 = -10
jadi 3a^2 - 13a -10
2. a x a = a^2
(a x 2b) x 2 = 4ab
2b x 2b = 4b^2
jadi a^2 + 4ab + 4b^2
^ = dibaca pangkat