SOLUTION: factoring: Problem - 3x^2 + 243
First answer 3(x^2 + 81)and then
I put 3(x + 9) * (x - 9), is this correct?
Algebra.Com
Question 146143This question is from textbook
: factoring: Problem - 3x^2 + 243
First answer 3(x^2 + 81)and then
I put 3(x + 9) * (x - 9), is this correct?
This question is from textbook
Found 3 solutions by jim_thompson5910, solver91311, Earlsdon:
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Is there a negative in front of the ???
If there isn't a negative and the problem is :
The step is correct. However, you cannot factor further. So this means that completely factors to
------------------------------------------------------------------------
If there is and the problem is
Start with the given expression
Factor out the GCF
Factor using the difference of squares
So completely factors to
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
Right idea, but you have a sign error. Factor out , so that the resulting binomial is the difference of two squares, that is: . Your result should be: . The sum of two squares never factors; the roots of are always imaginary.
Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
Er...not quite right!
Your first step is ok, but that leaves you with the sum of squares binomial which does not have real factors.
However, is that a negative sign in front of the ?, if it is, then you can factor as follows:
=
When you factor the sum of squares binomial you get where:
RELATED QUESTIONS
How do I fully factor this?
{{{x^5 -x^3 + 27x^2 -27}}}
My attempt:
I took x^3... (answered by jim_thompson5910)
Solve this equation: x^3+729=0
I know this much: 1st solution is -9
(x+9)^3=0... (answered by drk)
solve the equation.... (answered by edjones)
Write a quadratic equation having the given numbers as solutions.
3/5 , -9
Is this... (answered by Alan3354)
the sum of three consecutive integers is 243. find the smallest interger. here's the (answered by venugopalramana)
please let me know if this is correct(factoring polinomials).
9-x^2.
3^2=9.
-x*-x=x^2.
(answered by jim_thompson5910)
-9/[x(x+10)^2]x= -4 I did this problem and I have 81 on my first answer and when I did... (answered by richwmiller)
Hi! I need some help factoring this problem out and then simplyfying my answer.... (answered by Nate,rcmcc)
We are currently working on rational expressions in my Intermediate Algebra class and I... (answered by rothauserc)