What must be added to x²+5x to make a perfect square please help me?

Answer 1

In order for an expression of the form x^2 + bx to be a perfect square, it must be written in the form (x + c)^2, where c is a constant. To rewrite x^2 + bx as a perfect square, you must add (b/2)^2 to both sides of the equation.

Therefore, if x^2 + 5x is to be a perfect square, you must add (5/2)^2 to both sides of the equation:

x^2 + 5x + (5/2)^2 = (x + (5/2))^2

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