factor the polynomial
in Algebra 1 Answers 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

3x²+3x-9=3(x²+x-3) is the only rational factorisation.

To take it further x²+x-3=(x²+x+¼)-3¼=(x+½)²-(√13/2)², difference of two squares.

This factorises: (x+½+√13/2)(x+½-√13/2) making the complete factorisation:

3(x+½+√13/2)(x+½-√13/2). Note that √13/2 is to be interpreted (√13)/2, NOT √(13/2).

by Top Rated User (710k points)

Related questions

1 answer
asked May 6, 2012 in Algebra 1 Answers by anonymous | 310 views
1 answer
asked Nov 11, 2013 in Algebra 2 Answers by anonymous | 139 views
1 answer
asked Jul 16, 2012 in Algebra 1 Answers by anonymous | 268 views
2 answers
1 answer
1 answer
asked Apr 18, 2012 in Algebra 2 Answers by anonymous | 421 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!
84,402 questions
89,210 answers
1,988 comments
7,485 users