jamescarey86 wrote:

hi Guys,

I wanted to know why in the attached screen shot the answer is x*2 = X*2

thanks

\(\frac{x}{|y|} = -1\) is equivalent to \(x = -|y|\) or \(-x = |y|\).

It is also equivalent to \((-x)^2 = |y|^2 = y^2\), and so we have \(x^2 = y^2\).

Hence, D is the correct answer.

We have used a property as follows.

- \(|x| = a\) is equivalent to \(x^2 = a^2\).

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