You need to clarify your question. Depending on what you mean, the answer could be:
or many other things.
125x squared
15
(3x2)2 (5x)4 = 9x4625x4 = 5625x8
25
The expression "5 times x squared" can be represented as 5x^2, where x is a variable representing an unknown value. This expression indicates that the variable x is squared (multiplied by itself) and then multiplied by 5. The result of evaluating this expression will depend on the specific value assigned to x.
5x cubed
125x squared
It is 5x2 - 20
(5x)2 = 25x2.
5x X x^(2) = 5x^(3) ; Said as 'five 'x' cubed'.
When you subtract 7x^2 from 5x^2, you get -2x^2.
(5x - 2y)(5x + 2y)
5x squared
-1
15
(3x2)2 (5x)4 = 9x4625x4 = 5625x8
5x2 - 20 = 0x2 - 4 = 0x2 = 4x = +2 and -2