SOLUTION: Good Morning,
HELP!!! Factoring Trinomials and determine if it a prime if I must state it.
-20 + 31x - 12x^2
Thanking you in advance Betty
Algebra.Com
Question 1014014: Good Morning,
HELP!!! Factoring Trinomials and determine if it a prime if I must state it.
-20 + 31x - 12x^2
Thanking you in advance Betty
Found 3 solutions by fractalier, stanbon, Alan3354:
Answer by fractalier(6550) (Show Source): You can put this solution on YOUR website!
Rearranging we get
-12x^2 + 31x - 20 =
-(12x^2 - 31x + 20) =
Ask yourself, "Are there factors of 12*20 that add to 31?"
Yes, 15 and 16, and we get
-(3x - 4)(4x - 5)
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
-20 + 31x - 12x^2
------
-(12x^2 - 31x +20)
----
discriminant:: b^2 - 4ac
------
b^2 - 4ac = 31^2 - 4*12*20 = -479
-------
Since the discriminant is negative the zeroes of
this algebraic form are complex numbers.
-----
The Form is considered to be prime because is
has no Real Number zeroes.
-----
Cheers,
Stan H.
----------
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Factoring Trinomials and determine if it a prime if I must state it.
-20 + 31x - 12x^2 = (5 - 4x)*(-4 + 3x)
=====================
RELATED QUESTIONS
Good Morning,
HELP!!! Factoring perfect-square Trinomials and determine if it a prime... (answered by stanbon,fractalier)
Good Morning,
HELP!!! How do I factor completely and find out if it's a polynomial... (answered by Alan3354)
Good Morning,
HELP!!! factoring completely and is this polynomial prime.... (answered by fractalier)
Factor completely. If a Polynomial is prime, state this... (answered by lynnlo)
In my (online) math class we were learning about factoring trinomials completely and... (answered by rapaljer)
Can you please help me with this problem? I'm having trouble with factoring some... (answered by stanbon)
I need your help with, Factoring Trinomials By Grouping, If the Trinomials cannot be... (answered by vidyamanohar)
Good Morning,
Wishing all a blessed Sunday. I have to problems that I need assistance,... (answered by hoatvu995)
I need your help with, Factoring Trinomials By Grouping, If the Trinomials cannot be... (answered by vidyamanohar)