Jawabanmu

2014-06-01T09:09:02+07:00
1). 2√(x-2) - x = -1
2√(x-2) = x-1 --> kuadratkan kedua ruas
4(x-2) = x²-2x+1
4x-8 = x² - 2x + 1
0 = x² - 6x + 9
(x-3)(x-3) = 0
x = 3