Ask a New Question

Asked by Anonymous

Find k so that (x-2) is a factor of x³+kx-4?

Kindly help me this one
8 years ago

Answers

Answered by Reiny
let f(x) = x^3 + kx - 4
if x-2 is a factor, then f(2) = 0
f(2) = 8 + 2k - 4 = 0
2k = -4
k = -2
8 years ago
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.

Related Questions

How does 3x(4x+5)-5(4x+5) factor out to be (4x+5)(3x-5) ? This may be wrong, because I wrote this an... In this sequence, tk is a factorial number, often written k!. Show that tk=k!=k(k-1)(k-2)...(3)(2)(1... how do you find the prime factors of 24 Please help! I need to factorise and solve this equation, x^2 +x -30 =0 I then need to expl... Please help me with these factorise algebra questions!!! 1. 9c squared + 30c + 25 - 4d squared... Will someone help me with factoring? What are the other three factors of a number if the other three are 5 ,7, and 13 ? 3. which if the following factors determines how long a star will live ? ( 1point ) A . star’s c... A) Which of the following factors should be identified as a pull factor for immigration? (1 point)... Find the greatest common factor of 24 and 60 a 24 b 2 c 6 d 12 Question 2 (1 point)...
Submit Your Answer

Question

Find k so that (x-2) is a factor of x³+kx-4?

Kindly help me this one

Ask a New Question
Archives Contact Us Privacy Policy Terms of Use