Question

(x-3)do kwadratu+(4-x)(4+x)>-1-3x+2/2

Answer 1

= x(do kwadratu)-6x+9+16-x(do kwadratu)>-1-3x+2/2
=-6x+25>-1-3+1
=-6x+3x>-25
=-3x>-25
=x<8,3...

Answer 2

X do kwadratu+ 2*(-3x)+4do kwadratu - x do kwadratu>-1-3x+2/2
x do kwadratu-6x+16-xdo kwadratu> -1-3x+1
-6x+16>-1-3x+1
-6x-3x> -1+1-16
-9x<-16 zmiana znaku
x<-16/(-9)
x< 1 5/9