2006-09-17 16:00:03 · 9 answers · asked by LOLO 1 in Science & Mathematics ➔ Mathematics
One factor of 3x2- 6x + 9 is :
x2 - 2x + 3
x2 - 6x + 9
x2 - 2x + 9
x + 3
None of these
2006-09-17 16:07:28 · update #1
well go ahead in this way
3x2-6x+9
= 3( x2-2x+3)
The expression x2-2x+3 cannot have real factors coz it discriminant is less than 0 .
therefore the answer is either 3 or x2-2x+3
2006-09-17 16:16:04 · answer #1 · answered by jammy 2 · 1⤊ 0⤋
3! (not three factorial)
(Always factor out any common factors that are in every term first, it makes the rest of the problem much easier)
So then 3x^2 - 6x + 9 = 3(x^2 -2x +3)
Can you factor what's left in parentheses? (If you're in Algebra 1, you won't need to, if you're in Algebra 2 or Precalculus, you're looking for a complex conjugate pair of factors.)
2006-09-17 23:04:27 · answer #2 · answered by selsnick 2 · 0⤊ 0⤋
15-6x or 9 depends 3x2 means 6x or 6.
2006-09-17 23:05:02 · answer #3 · answered by chanljkk 7 · 0⤊ 0⤋
3x^2 - 6x + 9 = 3(x^2 - 2x + 3)
2006-09-18 02:10:52 · answer #4 · answered by Sherman81 6 · 0⤊ 0⤋
3x^2 - 6x + 9 = 0 have no solution since 0 > b^2 - 4ac
a=3, b=-6, c=9
b^2 - 4ac = 6^2 - 4.3.9 = 36 - 108 = -72
2006-09-17 23:10:21 · answer #5 · answered by Anonymous · 0⤊ 0⤋
6x+9? Syntax error!
2006-09-17 23:01:58 · answer #6 · answered by Bombenhagel 3 · 0⤊ 0⤋
This equation doesn't factor. It's an upward opening parabola with a minimum point at (1,6), so it doesn't cross the x-axis anywhere.
Perhaps there's a typo?
2006-09-17 23:13:29 · answer #7 · answered by Bramblyspam 7 · 0⤊ 0⤋
Jammy is the only one who is correct. He should get the 10 points. The answer is (a) on your list above.
2006-09-17 23:35:41 · answer #8 · answered by Sciencenut 7 · 0⤊ 0⤋
X can be anything if the equation doesn't equal anything.
2006-09-17 23:01:43 · answer #9 · answered by Stephanie 4 · 0⤊ 1⤋