Draw root 9 on a number line​

Step-by-step explanation:

root 9 looks like

maybe you can solve it now?

3*3 = 9

so root 9 = 3

mark 3 on the number line

the difference between a number and 5 is -2.

step-by-step explanation:

notice that the equation you are given has -2 (negative 2) on the right side, not 2. when you subtract 5 from a number n, you are finding the difference between the number and 5.

the difference between a number and 5 is -2.

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225