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
This is an ambiguous question Ans. 1 x is an unknown. To square x, multiply it by itself x.x=x2 5 times x2 = 5x2 Ans. 2 5 times x = 5x (5 times x) squared, is (5x)2 = 25x2
25
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5x cubed
125x squared
It is 5x2 - 20
When you subtract 7x^2 from 5x^2, you get -2x^2.
(5x - 2y)(5x + 2y)
-1
5x squared
15
(3x2)2 (5x)4 = 9x4625x4 = 5625x8
5x2 - 20 = 0x2 - 4 = 0x2 = 4x = +2 and -2
This is an ambiguous question Ans. 1 x is an unknown. To square x, multiply it by itself x.x=x2 5 times x2 = 5x2 Ans. 2 5 times x = 5x (5 times x) squared, is (5x)2 = 25x2