Wednesday

October 22, 2014

October 22, 2014

Posted by **Kenneth** on Sunday, January 29, 2012 at 8:59am.

I first started by pairing the like terms together, getting:

4x^2 -8x + 4y^2 -16y = 29

The next step, I'm a little confused. I know I need to complete the square, but I'm not sure how to fully factor out the above equation before doing so. Can someone help me getting the factored form of the above equation?

Thanks!

- math -
**Reiny**, Sunday, January 29, 2012 at 9:13am4x^2 -8x + 4y^2 -16y = 29

4(x^2 - 2x + ...) + 4(y^2 - 4y + ... ) = 29

4(x^2 - 2x + 1) + 4(y^2 - 4y + 4) = 29 + 4 + 16

4(x-1)^2 + 4(y-2)^2 = 49

divide by 4

(x-1)^2 + (y-2)^2 = 49/4

looks like a circle with centre at (1,2) and radius 7/2

**Answer this Question**

**Related Questions**

math help urgent - what di di do wrong in this??? the question is: x-8y=18 -16x+...

Algebra - Totally confused-learned this today and I don't get it-Please help ...

Math 30 Pure - 9x^2+16y^2+64y+28=0 I am supposed to convert this to standard ...

Math I really need help! - Multiply and simplify by factoring. Assumem that all ...

alg. - solve the system by addition: -5x-9y = -5 x+5y=-15 I've tried this one ...

Math - PreCalc (12th Grade) - Which rectangular equation corresponds to these ...

Math - Factor: (x^3)(z^6)-27y^9 81x^4-16y^4 2x^3+16y^3

Math - 9x^2+16y^2-18x+64y-71=0 find the coordinates of the center, the foci, and...

algebra - What are the factors of the following trinomial? 16y^2 - 12y + 2 a) (...

Algebra I - 16y^{2}-40y+? I really need to figure out what the question mark is...