Question: Preform the indicated operations
10x^2 -9xy +2y^2
i have no clue what to do but i think it may have something to do with factoring a perfect square trinomial
2007-10-01 08:53:15 · 4 answers · asked by topnoch22 1 in Science & Mathematics ➔ Mathematics
(5x - 2y) (2x - y)
try to remember the FOIL method
2007-10-01 08:59:30 · answer #1 · answered by jondawg 4 · 0⤊ 1⤋
There are no indicated operations that I can see.
You could solve for y getting:
y = {9x +/- sqrt(81x^2 -80x^2}/20
y = (9x +/- x)/20
So y = x/2 or y= 2x/5
This would indicate that the factors of the trinomial are
(5x-2y)(2x-y)
2007-10-01 16:20:25 · answer #2 · answered by ironduke8159 7 · 0⤊ 0⤋
10x^2 - 9xy + 2y^2
=>10x^2 - 5xy - 4xy + 2y^2
=>5x(2x - y) - 2y(2x -y)
=>(2x-y)(5x-2y)
2007-10-01 16:01:34 · answer #3 · answered by mohanrao d 7 · 1⤊ 0⤋
Check this:
(5x-2y)(2x-y)
2007-10-01 16:04:52 · answer #4 · answered by Crazy and Lovin It 4 · 0⤊ 0⤋