Module 4 day 11 part 6
I don’t think this makes sense I mean I can’t really understand it.
Sum of roots(z’s)=-9
Sum of retroprical of roots x’s
Does anyone of you understand it and thanks.
@Bolun-Zhang So from what I see, we divided by x^2 in order to get from the first step to the second step.
Now, we made the substitution that z = x^2. Therefore, by Vieta's Theorem, we know that the sum of the roots of the 4th equation is -9/1=-9.
Now, we want to know what the sum of the roots of 1/x is(Hint: look at what substitution we made.)
Hopefully I interpreted it right, and happy mathing!
Yes you did thank you.