2007-12-09 16:49:07 · 8 answers · asked by vixalle21 4 in Science & Mathematics ➔ Mathematics
xy + y + 9x + 9
= y * (x + 1) + 9 * (x + 1)
= (y + 9) * (x + 1)
hope this helps.
2007-12-09 16:52:30 · answer #1 · answered by Chris W 4 · 1⤊ 0⤋
y(x + 1) + 9(x + 1)
(x + 1)(y + 9)
2007-12-12 06:20:46 · answer #2 · answered by Como 7 · 2⤊ 0⤋
xy + y + 9x + 9=y(x+1)+9(x+1)
=(y+9)(x+1)
2007-12-09 16:59:06 · answer #3 · answered by kartheek 2 · 0⤊ 1⤋
y(x+1) + 9(x+1)
(y+9)(x+1)
2007-12-09 16:53:15 · answer #4 · answered by cherry i 1 · 1⤊ 0⤋
(y+9)(x+1)
2007-12-09 16:58:15 · answer #5 · answered by spookgi 2 · 0⤊ 0⤋
(x+1)(y+9)
2007-12-09 16:52:45 · answer #6 · answered by MartinWeiss 6 · 1⤊ 0⤋
you very almost have been given it, and definite -- you do element: commencing out of your third step: 9x - x^2 = 20, upload x^2 and subtract 9x from the two facets x^2 - 9x + 20 = 0, outstanding notably quadratic -- element it (x - 4)(x - 5) = 0, and we've our ideas. x = 4 and 5 -- this suggests that x = 4, y = 5 (or x = 5, y = 4, the two way is fantastic.) happy mathing!
2016-11-14 06:46:56 · answer #7 · answered by ? 4 · 0⤊ 0⤋
take out common factor of Y and common factor of 9
y(X+1) 9(X+1)
answer:
(X+1) (Y+9)
2007-12-09 16:53:22 · answer #8 · answered by Christopher 2 · 1⤊ 0⤋