# help factoring this trinomial

posted by .

2x^2-10x+8

• factoring -

2x^2-10x+8
=2(x²-5x+4)
Find numbers a and b such that
a*b=4, and a+b=-5
=2(x+a)(x+b)
=2(x-4)(x-1)
i.e. a=-4, b=-1

## Similar Questions

1. ### MORE MATH

What is the factoring by grouping? When factoring a trinomial, why is it necessary to write the trinomials in four terms?
2. ### help!!!!!!!!!!

When factoring a trinomial, why is it necessary to write the trinomials in four terms?
3. ### math,factoring,help

Can someone please show me step by step how to do these. I've read the book and there examples and It is just not clicking. Directions: Factor each of the following polynomials completely Problem:#1 14x^2-20x+6 Directions:Find all …
4. ### Algebra

What is factoring by grouping? When factoring a trinomial by grouping, why is it necessary to write the trinomial in four terms?
5. ### DQ

What is factoring by grouping? When factoring a trinomial by grouping, why is it necessary to write the trinomial in four terms?
6. ### math 118

x^2+10x Add the proper constant to the binomial so tha tthe resulting trinomial is a perfect square trinomial. Then factor the trinomial
7. ### math

I need help soving this problem. Factor the trinomial completely. 4x^3-10x^2-50x I also want to know if I soved this problem correctly?
8. ### algebra 1

3) for any factorable trinomial x^2+bx+c, will the absolute value of b sometimes,always, or never be less than the absolute value of c?
9. ### algebra 2

find the value of c that makes each trinomial a perfect square. then write the trinomial as a prefect square. x^2-10x+c x^2+60x+c
10. ### math

I don't understand factoring. One of my homework questions asks for that. The question is "The area of a rectangular garden is given by the trinomial x to the 2nd power plus x -42. What are the possible dimensions of the rectangle?

More Similar Questions