Trinomials of the Form x

# Trinomials of the Form x - 6 Example 2 Factor x 2 – 7 x...

This preview shows pages 1–2. Sign up to view the full content.

Trinomials of the Form x^2 + bx + c To factor polynomials of the form  x 2  +  bx  +  c , begin with two pairs of parentheses with  x  at the left of  each.   (  x   )(  x   )  Next, find two integers whose product is  c  and whose sum is  b  and place them at the right of the  parentheses.  Example 1 Factor  x 2  + 8  x  + 12.  x 2  + 8  x  + 12 = (  x   )(  x   )  12 can be factored in a variety of ways:  (1)(12), (–1)(–12), (2)(6), (–2)(–6), (3)(4), (–3)(–4) Only one of those pairs of factors sum to 8, namely (2)(6), so  x 2  + 8  x  + 12 = (  x  + 2)(  x

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: + 6) Example 2 Factor x 2 – 7 x – 18. –18 can be factored in the following ways: (1)(–18), (–1)(18), (2)(–9), (–2)(9), (3)(–6), (–3)(6) The only combination whose sum is also –7 is (2)(–9), so x 2 – 7 x + 18 = ( x + 2)( x – 9) Example 3 Factor x 2 – 6 x + 9. 9 can be factored as (1)(9), (–1)(–9), (3)(3), (–3)(–3) The only combination whose sum is –6 is (–3)(–3), so x 2 – 6 x + 9 = ( x – 3)( x – 3) = ( x – 3) 2...
View Full Document

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern