5x squared - 3x = 25
First you can get rid of the square by square rooting the 25
This would then make it
5x - 3x = 5
Then simplify the equation
2x = 5
Then you need to get x on its own so you need to divide by 2
x = 5/2
x = 2.5
I think this is the answer and I hope this helps x