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y = ----> kedua ruas pangkatkan dengan 2
y² = 2x + 5
2x = y² - 5
x = (y² - 5)
(x) = (x² - 5)
no.2) f (x) =
y =
y(x² + 1) = 5
x² + 1 =
x² = + 1
x² =
x = (+/-)
x =
(x) = atau
(x) = -