Question

20 de puncte. Mi ați putea explica?​

Answer 1

A={x=N l 9<2(2x-3)+7≤29

9<2x-6+7≤29

9<2x+1≤29

x1>8/2=4

x2≤28/2=14

-∞_______0______4____14______+∞

x1 (____________>

<__x2____ ____________]

(_____]

intersecția x1 cu x2

A={5;6;... ;14}

B={x=N l 1≤2(3x+4)-7<37}

1≤6x+8-7<37

1≤6x+1<37

x1≥0

x2<36/6=6

-∞__________0_______6____+∞

x1. [_____________)

x2__________________)

[_______)

intersecția x1 cu x2

B={0;1;2;3;4;5}