SOLUTION: Hi there! I was wondering if you could help me by factoring trinomials using ax(squared) + bx+ c formula. We recently learned how to factor them using x(squared) + bx+ c. Her

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Hi there! I was wondering if you could help me by factoring trinomials using ax(squared) + bx+ c formula. We recently learned how to factor them using x(squared) + bx+ c. Her      Log On


   

Question 854030: Hi there!
I was wondering if you could help me by factoring trinomials using ax(squared) + bx+ c formula.
We recently learned how to factor them using x(squared) + bx+ c. Here is a piece of my work from a problem that I worked on.
x(squared) + 7x + 10
(x+2)(x+5)
A problem that I am having trouble on is
2x(squared) + 13x +15 and we need to factor it.
If possible, could you please explain to me how to solve this problem? I bet once I understand how to complete it, it would be much easier. If there is an easier way to solve it than using guess and check or draw a graph that would be great,
Thank you.
Answer by Seutip(231) About Me  (Show Source):
You can put this solution on YOUR website!
x%5E2%2B7x%2B10
is equal to
%28x%2B2%29%28x%2B5%29 That's correct.
In,
2x%5E2%2B13x%2B15
First find the factors of the third polynomial which is 15,
Its factors are:
1,3,5,15 respectively.
To arrange you should put,

You can identify the numbers, in order for it to fit. :)

Hoe that helps!
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