Помогите решить уравнения)а)х^2+3x-1 целая 1/2=0
б)1/2х^2-x+1/3=0
- 1) X^2 + 3X — 32 = 0 ( * 2 )2X^2 + 6X — 3 = 0D = 36 — 4*2*(-3) = 36 + 24 = 60V D = V 60 = V ( 2 * 3 * 2 * 5 ) = 2 V 15 X1 = ( — 6 + 2 V 15 ) : 4 = — 1.5 + 0.5V 15 X2 = ( — 6 — 2 V 15 ) : 4 = — 1.5 — 0.5 V 15 ……………………………………………………………….2) 12X^2 — X + 13 = 0 ( * 6 ) 3X^2 — 6X + 2 = 0D = 36 — 4*3*2 = 36 — 24 = 12 ; V D = V 12 = V 4 * 3 = 2 V 3X1 = ( 6 + 2 V 3 ) : 6 = 1 + 13 V 3
X2 = 1 — 13 V 3