exercice 01
p(x)=-x²+3x+4
p(x) mina daraja taniya
7al p(x) = 0
dilta =b²-4ac
dilta =3²+16
dilta =25
x1=-b+jidr dilat/2a=-3+5/-2
x1=-1
x2=-b-jidr dilta /2a
x2=4
7al p(t) =0
ladayna
x1 & x2
wa minho
T1²=-1 "mostahil"
T1²=4
t=2 aw t=-2
s (2 ;-2) hada tamrin 01