f one factor of 12a^2 + 18a + 12 = 0 is 6, which is another factor?
A) 2a + 1
B) a + 1
C) Both A and B
D) Neither A nor B
2007-06-04 02:40:27 · 11 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
the answer to this is D because the equation is neither divisible by 2a+1 nor a+1
2007-06-04 02:49:59 · answer #1 · answered by Anonymous · 0⤊ 0⤋
D) Neither A nor B.
After factoring out the 6, you have 2a^2 + 3a + 2. The discriminant (the expression under the radical in the quadratic equation) is 3^2 - 4(2)(2) = 9 - 16 = -7. Since -7 is under the radical, the two roots are complex conjugates. Therefore a+1 and 2a+1 cannot be factors; they would lead to real roots.
2007-06-04 02:49:48 · answer #2 · answered by TFV 5 · 0⤊ 0⤋
one factor of 12a^2 + 18a + 12 = 0 is 6 (obviously)
divide by 6 we get
2a^2 + 3a + 2 - which factors into (2a+1)(a+1) + 1
So neither A nor B are factors
2007-06-04 03:01:36 · answer #3 · answered by welcome news 6 · 0⤊ 0⤋
D) Neither.
If you factor a 6 out of
12a^2 + 18a + 12 you get
6*(2a² + 3a + 2) and (2a² + 3a + 2) doesn't contain any of the factors listed.
Doug
2007-06-04 02:48:02 · answer #4 · answered by doug_donaghue 7 · 0⤊ 0⤋
D) Neither A nor B.
Synthetic division for 2a+1 and a+1 fails.
2007-06-04 02:47:12 · answer #5 · answered by Anonymous · 0⤊ 0⤋
D) Neither, you can't factor an a out because the 12 has no a
2007-06-04 02:59:01 · answer #6 · answered by Adam A 2 · 0⤊ 0⤋
An employer interviews people for technical support positions in a company, and of the people are men. If all are qualified, in how many ways can the employer fill the technical support positions if exactly is a man?
2016-05-21 00:22:07 · answer #7 · answered by nellie 3 · 0⤊ 0⤋
You know titles like that only make me more eager to avoid such questions.
2007-06-04 02:47:41 · answer #8 · answered by Anonymous · 0⤊ 0⤋
I do not have time to answer but this is the quadratic equation.
2007-06-04 02:43:54 · answer #9 · answered by starsun moon 3 · 0⤊ 0⤋
if u dont know that then u r slow my 5 year cuz know that stay in school
2007-06-04 02:44:39 · answer #10 · answered by gangsta_girl_631 1 · 0⤊ 0⤋