(x-2)² = (x-3)² -7 adalah...
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(x-2)² = (x-3)² -7 adalah...
1 Jawaban
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1. Jawaban RulMun
(x-2)² = (x-3)² -7
(x-2)(x-2) = (x-3)(x-3)-7
x²-2x-2x+4 = x²-3x-3x+9 -7
x²-4x+4 = x²-6x+9-7
x²-x²-4x+6x = 9-7-4
2x = -2
x= -1