SOLUTION: I'm not sure how to factor this trinomial. 9x^3-3x^2-30x

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: I'm not sure how to factor this trinomial. 9x^3-3x^2-30x      Log On


   



Question 692078: I'm not sure how to factor this trinomial. 9x^3-3x^2-30x
Answer by ReadingBoosters(3246) About Me  (Show Source):
You can put this solution on YOUR website!
Factor out the commonalities: 3x
3x%283x%5E2-x-10%29
What factors of 3 and -10 will combine to create -1...
factors of 3: 1, 3
facotrs of 10: 1, 2, 5, 10
3*2 = 6 and 1*5=5, if the 6 is negative, then -6+5 is -1. Therefore,
highlight_green%283x%283x%2B5%29%28x-2%29%29
…………………………….
Have more questions? Get them all answered at once.
HomeworkHelpers@ReadingBoosters.com
Individualized Coaching: www.MyHomeworkAnswers.com
--Reading Boosters