Simplify (y-z)square -2yz?

1 Answer
Feb 19, 2018

y24zy+z2

Explanation:

(yz)2 = (yz)(yz)
If you expand this, you get: y2zyzy+z2 or y22zy+z2
Then, add the 2yz into it and you get y22zy2zy+z2, which becomes y24zy+z2

Hope this helps!