Asked by Marieke
For which integral values of k can 4x^2+kx+3 be factored over the integers?
Answers
Answered by
Reiny
multiply 4 by 3 to get 12
now k must be the sum of factors of 12 taken in pairs.
1x12 ---> k = 13
2x6 ----> k = 8
3x4 ----> k = 7
and
in each case both factors could have been negative
so other values of k are 13, -8, and -7
now k must be the sum of factors of 12 taken in pairs.
1x12 ---> k = 13
2x6 ----> k = 8
3x4 ----> k = 7
and
in each case both factors could have been negative
so other values of k are 13, -8, and -7
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.