All the time
It is: 9-4 = 5
4 squared minus 2 squared equals 12
x = -2/3,7/6
B squared equals c squared minus a squared then to find B take the square root of you answer for b squared
x = plus or minus 6.
square root of 8
You have to put your heart into it!
Solve this problem -x squared -40x- 80 =0
There's an equals missing...