factor by grouping?

1 ⤊

25v^2+60v+27

2007-11-18 16:47:25 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics

(5 v + 9)(5v + 3)
Check
25v² + 15v + 45v + 27
25v² + 60v + 27 (as required)

2007-11-18 18:55:27 · answer #1 · answered by Como 7 · 1⤊ 1⤋

25v^2 + 60v + 27

becomes

25v^2 + 45v + 15v + 27
(25v^2 + 45v) + (15v + 27)
5v(5v + 9) + 3(5v + 9)
(5v + 3)(5v + 9)

2007-11-19 00:55:18 · answer #2 · answered by Sherman81 6 · 0⤊ 1⤋

25v^2 + 60v + 27 = 5v(5v + 3 ) + 45v + 27
= 5v(5v +3) + 9(5v + 3)
= (5v + 9)(5v + 3)

2007-11-19 00:55:17 · answer #3 · answered by Anonymous · 0⤊ 1⤋

(5v+3)(5v+9)

2007-11-19 00:53:57 · answer #4 · answered by someone else 7 · 0⤊ 0⤋