Which of the following equations is NOT

Sam Kinsman

Hi Sonika,

We have the equation 10y^2 = x^2 - 4. If we divide both sides by 2, we get:

5y^2 = ((x^2)/2) - 4/2
5y^2 = ((x^2)/2) - 2

Notice that this is not the same as answer choice D (5y^2=x^2-2), since the x^2 term is divided by 2. So we know that the equation we are working with is different from choice D, so choice D is correct.

Dec 7, 2016 • Reply