When can you pull a number out from under the radical?

You can take out anything that is a perfect square

Step-by-step explanation:

For Example, a perfect square would be considered

64

36

to get a perfect square you multiply a number by itself

for example,

8 x 8 = 64

6 x 6 = 36

i can't solve unless i know what the line is

step-by-step explanation:

welcome to/p>

the image is given below

since the options are not given so we draw it from the equation

the given equation is

y = (x-1) (x+4)

y = y² + 3x - 4

the above equation is a quadratic equation which will have two roots. if we draw the graph for it, it will look like this