Răspuns:
A) x²+5x+x+5<2x+17
X²+6x+5<2x+17
X²+6x-2x<17-5
X²+4X<12 /:4
X²+x<3
B) x²+5x+x+5+17
X²+6x+22
C) 22-20>8 /+20
22>30 /:2.
11>15
D) 2-20>2+4
2-20>6 /+20
2>26 /:2
13
E) 2x-4-(x²+x-3x-3)
2x-4-x²+2x+3
X²+4x-1
Explicație pas cu pas:
Sper ca te am ajutat!!