x=y+3t Original formula:
y2 -xy = 9t2 -3xt (assumes you meant "9 times t2 " and not (9t)2 ) y2 = xy +9t2 -3xt
y2 - 9t2 = xy - 3xt
(y-3t)(y+3t) = x(y-3t)
(y-3t) = x
2
It is: 9-4 = 5
All the time
15.
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
square root of 8
x=3
You have to put your heart into it!
Solve this problem -x squared -40x- 80 =0
5 or 12