(x+2)(x+3)(x-4)<0
(х²+3х+2х+6)(х-4)<0
х³+3х²+2х²+6х-4х²-12х-8х-24<0
х³+х²-14х-24<0
(х²-3х)(4х+2)>0
4х³+2х²-12х²-6х²>0
4х³-16х²>0
<span>1) x^2 * (x^4 - 16) = x^2 * (x^2 - 4) * (x^2 +4)
2) y^5 * (y^2 - 16/9) = y^5 * (y - 4/3) * (y + 4/3)</span>
4у-5/10 -6у+3/10=
=(4у-5-6у-3)/10=(-2у-8)/10=
=2(-у-4)/10=(-у-4)/5
-4а+3/20 -а-7/20=
=(-4а+3-а+7)/20=(10-5а)/20=
=5(2-а)/20=(2-а)/4
б+3а/а^2 -б-2а/а^2=
=(б+3а-б+2а)/а^2=5а/а^2=5/а
2+х/2х-14 -х-2/2х-14=
=(2+х-х+2)/2(х-7)=4/2(х-7)=
=2/(х-7)
у+2/6-у +у+2/у-6=
=(у+2-у-2)/(6-у)=0
у^2-з/у-з -з^2-з/у-з=
=(у^2-з-з^2+з)/у-з=
(у^2-з^2)/(у-з)=
=(у-з)(у+з)/(у-з)=у+з