Use the sum of cubes factoring rule
to transform the left hand side into the right hand side.
Throughout the entire process, the right hand side stayed the same.
On the last step, I used the pythagorean identity.
All you have to do is divide 104 by 4! The awnser is 26
ANSWER:
(-7)^2-4*(-7)
=49+28
=77
Hope it helps u! :)
You are correct. The higher the standard deviation is, the more spread out the data set will be. Nice work.