Question

6x^2+7x=5

x(x-5)=1-4x

Answer 1

D=49+4*6*5=169
X1=(-7+13)/12=0,5
X2=(-7-13)/12=20/12=1 2/3


X^2-5x-1+4x=0
X^2-x-1=0
D=1+4*1*2=9
X1=(5+3)/4=2
X2=(5-3)/4=0,5