factor by grouping?

2 ⤊

3x^2 + 3xy + 4x + 4y

2007-03-09 03:14:12 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics

3x² + 3xy + 4x + 4y =
3x(x + y) + 4(x + y) =
(3x + 4)(x + y)
:==:

2007-03-09 03:17:55 · answer #1 · answered by aeiou 7 · 1⤊ 0⤋

= 3xÂ² + 4x + 3xy + 4y
= x(3x + 4) + y(3x + 4)
= (3x + 4).(x + y)

2007-03-09 11:39:21 · answer #2 · answered by Como 7 · 1⤊ 0⤋

3x(x+y)+4(x+y)
(3x+4)(x+y)

2007-03-09 12:03:45 · answer #3 · answered by Anonymous · 0⤊ 0⤋