A' level question
in Other Math Topics by

Your answer

Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.
Anti-spam verification:
To avoid this verification in future, please log in or register.

1 Answer

x^3+ax^2+bx+c-2x-11=(x^2-4)(x+1)=x^3+x^2-4x-4.

There can be no more factors because the highest power of x is 3: x^2 * x=x^3and we know x^2-4 and x+1 are given factors once we subtract the remainder from the dividend.

Therefore a=1 (x^2 term); b-2=-4 (x term), making b=-2; c-11=-4, making c=7.

by Top Rated User (738k points)

Related questions

1 answer
asked Sep 27, 2017 in Algebra 1 Answers by anonymous | 299 views
Welcome to MathHomeworkAnswers.org, where students, teachers and math enthusiasts can ask and answer any math question. Get help and answers to any math problem including algebra, trigonometry, geometry, calculus, trigonometry, fractions, solving expression, simplifying expressions and more. Get answers to math questions. Help is always 100% free!
84,775 questions
89,828 answers
2,031 comments
30,048 users