X² – 2y – 8 = 0tentukanX1 – X2

By Admin ReiPosted on December 5, 2022

X² – 2y – 8 = 0tentukanX1 – X2

$± frac{ sqrt{d} }{a} = ±frac{ sqrt {b}^{2}.4.a.c }{a} = ± sqrt{( - 2)^{2} - 4.1.( - 8)} \ = ± frac{ sqrt{4 + 32} }{a} = ± frac{ sqrt{36} }{1} = ±6$