Thursday

September 18, 2014

September 18, 2014

Posted by **Anonymous** on Monday, January 23, 2012 at 8:30pm.

- Grade 10 Math -
**Steve**, Tuesday, January 24, 2012 at 12:12am4x^2 + kxy - 9y^2

k = (4x^2 + 9y^2)/xy

let x = 3m and y = 2m

k = (36m^2 + 36n^2)/6mn

k = 6m/n + 6n/m

So, we see that n must divide 6m and m must divide 6n

If m=1, n divides 6: 1,2,3,6

If m=2, n divides 12: 1,2,3,4,6,12

and so on

Now, how many of those values of m and m determine unique values for k, I don't know. Have fun!

**Answer this Question**

**Related Questions**

math 176 - please detail all the steps for x squared minus 6xy plus 9y squared ...

please help in math homework - x squared minus 6xy plus 9y squared minus 4z ...

math 10 - how do i work out the answer to: "how many integer values are there ...

math - what is z cube 3 plus z squared minus 7z-7 divide z squared minus 3z ...

math - when 3a squared minus 7a plus 6 is subtracted from 4 a squared minus 3a ...

math 1 - what is c squared minus 6cd plus 9d squared minus 4

math - i am having a minor difficulty i've been stuck for over an hour and don't...

math - Have 2 questions: 1. Factor Trinomial competely x^2 + 8x + 53 (reads as x...

Math - 2x cubed minus x squared minus 6x plus 3. I know the answer is (2x-1)(x ...

Math - 2x cubed minus x squared minus 6x plus 3. I know the answer is (2x-1)(x ...