2y squared -9y-5
2006-10-03 11:45:20 · 6 answers · asked by starsabuv27 2 in Science & Mathematics ➔ Mathematics
Easily:
( 2y + 1 ) ( y - 5 )
There are only two choices for factors of 2y using integers:
( 2y ) ( y )
And -5 is either:
1 x -5
-1 x 5
So it is just a matter trying them both in either order to figure out which results in an answer of -9y. The result that works is -10y + y, so the final factoring is:
( 2y + 1 ) ( y - 5 )
2006-10-03 11:47:56 · answer #1 · answered by Puzzling 7 · 2⤊ 0⤋
yeah..
You hvae to find 2 numbers that multiply to -10 that add to -9. That would be -10 and 1.
So you get:
2y^2 -10y + y - 5
2y(y - 5) + 1 (y - 5)
(2y + 1)(y-5)
Hope that helps!
2006-10-03 18:52:14 · answer #2 · answered by teekshi33 4 · 0⤊ 0⤋
2y^2-9y-5
Yes it can. If you can't figure it out. Use the quadratic equation.
2006-10-03 18:47:13 · answer #3 · answered by mmmodem123 3 · 0⤊ 0⤋
Yes: (2y + 1)(y - 5)
2006-10-03 18:47:56 · answer #4 · answered by tlf 3 · 0⤊ 0⤋
yes, y is the common factor
so......y(2y-9)-5
y(2y-14)
2006-10-03 19:05:01 · answer #5 · answered by Webballs 6 · 0⤊ 1⤋
not sure working on it
2006-10-03 18:53:50 · answer #6 · answered by Bootylicious 2 · 0⤊ 1⤋