Y=ax
y=-3x+2
1)ax=-3x+2, ax+3x=2,x(a+3)=2,a+3=0,a=-3
2)ax=-3x+2,ax+3x=2, x(a+3)=2, x=2/(a+3),a≠3
(5+x)^2=(5+x)(5+x)=25+5x+5x+x^2=25+10x+x^2
<span>х^2+9+6х=0
x=-3
</span><span>4х^2= 9
</span>x=-3/2, x=3/2
<span>х^2+ 4х-5=0
</span>x=-5, x=1
<span>25х^2-144=0
</span>x=-12/5, x=12/5
х^2- 10-24=0
x=-√34, x=<span>√</span>34