Question

3 первые задачи с решением даю 25 балов

Answer 1

$\fracno numeric noise key 1053no numeric noise key 1052 = \fracNO NUMERIC NOISE KEY 1051no numeric noise key 1050 \\ x^2-1=5-x\\ x^2+x-6=0\\ D=(1)^2-4*1*(-6)=1+24=25\\ x_1= \frac{-1+5}no numeric noise key 1049 =2\\ x_2= \frac{-1-5}no numeric noise key 1048 =-3$

$\frac{x^2-6x}{3x-1} = \frac{3x-4}{1-3x} \\ \frac{x^2-6x}{3x-1} = \frac{4-3x}{3x-1} \\ x^2-6x=4-3x\\ x^2-3x-4=0\\ x_1=-1, \ x_2=4$

$\fracno numeric noise key 1023no numeric noise key 1022= \fracNO NUMERIC NOISE KEY 1021no numeric noise key 1020 \\ (5y-2)(y+3)=(2y+1)(3y+2)\\ 5y^2+15y-2y-6=6y^2+4y+3y+2\\ 5y^2-6y^2+13y-7y-6-2=0\\ -y^2+6y-8=0\\ y^2-6y+8=0\\ D=(-6)^2-4*1*8=36-32=4\\ y_1= 1019no numeric noise key 1018 =4\\ y_2= 1017no numeric noise key 1016 =2$