Jawabanmu

2014-02-05T22:15:55+07:00
X, + x,, = -b/a
x, x,, = c/a

x,²+x,,² = (x,+x,,)² - 2 x, x,,
x,²+x,,² =  (-b/a)² - c/a
x,²+x,,² = (-6/1)² - (-8/1)
x,²+x,,² = 36+8
x,²+x,,² = 44







x,^2 + x,,^2 tidaksamadengan (x, + x,,)^2
bukan, coba di urai (x, + x,, )² = (x, + x,,) (x, + x,,)
= (x,² + x,x,, + x,x,, + x,,²)
jadi kalo butuh x,² + x,,² dikurangi sama 2 x, x,,