Answers

2014-07-10T18:05:02+08:00
X^2 + 2x = 1
To make it a perfect square, you must add 1 to both sides.
x^2 + 2x + 1 = 1 + 1
x^2 + 2x + 1 = 2
Then we factor it to prove if its factors when multiplied will be equal to x^2 + 2x +1...
(x + 1)(x + 1) = 2
Since, it has two common factors then it is a perfect square.
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You haven't given the roots of the equation yet.
you know, you can't really say that...the question is very much unclear.
Actually, I can. I just told you that you haven't given the solutions to the equation. You might as well give it.