(5x+4)/3-2=1,5x(3x-7)

Question

(5x+4)/3-2=1,5x(3x-7)

Answer 1

(5х+4)=(3-2)1.5х(3х-7)
5х+4=1.5х(3х-7)
5х+4=4.5х^2-10.5х
4.5х^2-15.5х-4=0
9х^2-31х-8=0
D=961+288=35^2
х1=(31+35)/18=66/18=11/3
х2=(31-35)/18= -4/18= - 2/9

Comments

ответ должен быть равен -17