That would be 25 units. You can draw it out and you would get 25 units, or you could see the difference in -10 and 15, their distance would be 25 units.
That made no sense.
Answer:
= 18 ( 3 + 2(\sqrt{3} + \sqrt{2} ))
Step-by-step explanation:

Exponential form has the little number exponent at the top but sadly I can only represent that here with a ^ meaning to the power of.
5y^4*x^3