Question

A= {-3, -2, 0, 1}
B= { x² e N | x² - 7x = -12}

0 _ A
0 _ B
3 _ A
3 _ B
B _ Z
A _ N

alguém?? ​

Answer 1

A- $-23,1$

B- $x_{1}=3,x_{2} = 4$