Question

rezolvati va rog :
a) x patrat +3x-2 = 0
b) -x patrat + 2x-3 =0

Answer 1

$x^{2} +3x-2=0$

Δ=17 => x1=$\frac{-3+ \sqrt{17} }{2}$

x2=$\frac{-3- \sqrt{17} }{2}$

[tex] -x^{2}+2x-3=0 [/tex]

Δ=4-12=-8 => x1/2 nu apartine lui R.