Square roots - page 2
:confused: Can someone tell me how to figure a square root? I need to be able to do this for the nursing entrance test. My math skills are horrible, & I can't use a calculator. Thanks, ... Read More
Apr 7, '02The problem is solved this way....
x2 - x - 6=0
(x-3)(x+2)=0 (distributive property)
x-3=0 --> x-3+3 = 0+3 --> x=3 (add 3 to both sides)
x+2=0 --> x+2-2 = 0-2 --> x=-2 (subtract 2 from both sides)
And you would choose answer choice A
Is there anyone who can tell me how to figure this? It is a sample question on my entrance test.... I copied & pasted it so it is written just like on the test.
If x2 - x - 6 = 0 then x is:
a. -2 or 3
b. -1 or 6
c. 1 or -6
d. 2 or -3