Question

AM NEVOIE URGENT DE PROBLEMA REZOLVATA​

Answer 1

Răspuns:

Explicație pas cu pas:

Probabil v =reuniune  si ^ = intersectie

delta1 = 36+28=64   V64=8

x1,x2= (-6+-8)/2   ; x1=1,  x2=-7

delta2= 25+12*22=289; V289=17

x1,x2=(-5+-17)/2  ; x1=6, x2=-11

A={-11, -7, 1, 6}

x^3-9 <= 0    -3<= x <= 3  x in {-3,-2,-1,0,1,2,3}  (1)

x+1 divide 24

24=1*24=2*12=3*8=4*6   (8 divizori)

x+1=1  x=0

x+1=2  x=1

x+1=3  x=2

x+1=4  x=3

x+1=6  x=5

x+1=8  x=7

x+1=12 x=11

x+1=24 x=23        x in {0,1,2,3,5,7,11,23}      (2)

B= intersctiea mult. (1) si (2)

B={0,1,2,3}