Evaluate |-11| + |-7|.

-18
-4
4
18

 D) 18

Explanation:

|-11| simplifies to 11

|-7| simplifies to 7

Whatever is inside the absolute value, you just remove the negative and that's the result of that absolute value expression. It represents the distance on a number line. So for instance -11 is 11 units from 0, which is why |-11| = 11.

Overall,

|-11| + |-7| = 11 + 7 = 18

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225