Make 'y' the subject: x^2 = (y - a) / (y - b)

Ask Experts Questions for FREE Help !

Browse

Ask

Answer

Search

Join/Login

▸ ▸ ▸ » Make 'y' the subject: x^2 = (y - a) / (y - b)

drazgoosh Posts: 2, Reputation: 1

New Member

#1

Oct 26, 2010, 05:39 AM

Make 'y' the subject: x^2 = (y - a) / (y - b)

x^2 = (y - a) / (y - b)

I tried to use this method but it didn't work:

x^2 = (y - a)(y +b) / (y - b)(y +b)

Reply

ebaines Posts: 12,131, Reputation: 1307

Expert

#2

Oct 26, 2010, 05:45 AM

Multiply through by (y-b):

$<br /> x^2(y-b) = y-a<br />$

gather like terms:

$<br /> y(x^2-1) = bx^2 -a \\<br /> y = \frac {bx^2-a} {x^2 -1}<br />$

Reply

drazgoosh Posts: 2, Reputation: 1

New Member

#3

Oct 26, 2010, 07:29 AM

Comment on ebaines's post

Thanks for your help and the fact that this question was answered quite quickly.

Reply

Not your question? Ask your question View similar questions

Question Tools	Search this Question
Show Printable Version Email this Page	Search this Question: Advanced Search

Add your answer here.

Check out some similar questions!

How to transpose this; ax^3=b+cx^2 to make x the subject [ 2 Answers ]

ax^3=b+cx^2 to make x the subject

How do we make x the subject [ 4 Answers ]

4x=y

V=1/3pie are sqaured h make h the subject [ 4 Answers ]

I would like some help on this question

I am trying to rearrange the formula to make why the subject [ 1 Answers ]

s=r-square root (r squared - y squared) Regards Peter

How to solve for y [ 2 Answers ]

Hi there Could you please give me a step by step instruction of the following questions: Make y the subject in 1/x^2-1/z^2=1/y^2 Thanks

View more questions Search