SOLUTION: 6. Factor: x^4 + 5x^3 – 84x^2

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Question 215256This question is from textbook Intermediate Algebra
: 6. Factor: x^4 + 5x^3 – 84x^2 This question is from textbook Intermediate Algebra

Answer by drj(1380)   (Show Source): You can put this solution on YOUR website!
How do I factor



Step 1. Look for common factors in each term. In this case it is :



Step 2. For the trinomial expression, need to find two integers m and n such that m+n=5 and m*n=-84.

Step 3. After trying several numbers, the integers are m=12 and n=-7.



Step 4. ANSWER.

I hope the above steps were helpful.

For free Step-By-Step Videos on Introduction to Algebra, please visit http://www.FreedomUniversity.TV/courses/IntroAlgebra or for Trigonometry visit http://www.FreedomUniversity.TV/courses/Trigonometry.

And good luck in your studies!

Respectfully,
Dr J


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