Объяснение:
= 5х*х+5х+3х+3=5х (х+1)+3(х+1)=(3+5х) (х+1)
5x^2+8x+3=0
D=64-4*3*5
=2
x1= -8+2/10 = - 6/10 = -3/5
x2=-8-2/10 = -1
Объяснение:
= 5х*х+5х+3х+3=5х (х+1)+3(х+1)=(3+5х) (х+1)
5x^2+8x+3=0
D=64-4*3*5
=2
x1= -8+2/10 = - 6/10 = -3/5
x2=-8-2/10 = -1