Question

Să se scrie relatiile lui Viete pentru ecuatiile:
d) 7-2x+x²=0
g) x²+2mx-m+1=0

Dau coroană!​

Answer 1

d) x+y= -b/a = 2/1 =2
x•y= c/a = 7/1 = 7
g) x+y= -b/a = 2m/1 = 2m
x•y= c/a = -m+1/1= -m+1

Answer 2

Răspuns:

d) 7-2x+x²=0

x²-2x+7=0

S=x1+x2=-b/a=-(-2)/1=2/1=2

P=x1×x2=c/a=7/1=7

g) x²+2mx-m+1=0

S=x1+x2=-b/a=-2m/1=-2m

P=x1×x2=c/a=(-m+1)/1=-m+1=1-m