Berbagi Ilmu

Diketahui: x = 1,
maka x2 = 1, (x2 = x kwadrat)
sehingga
x2 = x
x2 – 1 = x – 1
(x – 1)(x + 1) = x – 1
(x – 1)(x + 1) = (x – 1).1
(x + 1) = 1
(1 + 1) = 1
2 = 1 ??? cek ulang

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