SOLUTION: Hi i am wondering if this quadratic expression can be factored in anyway: 3x^2-26 I tried {{{ 3(x^2-26/3) }}} {{{ 3(x-sqrt( 26/3 ))(x+sqrt( 26/3 )) }}} Not sure if thi

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: Hi i am wondering if this quadratic expression can be factored in anyway: 3x^2-26 I tried {{{ 3(x^2-26/3) }}} {{{ 3(x-sqrt( 26/3 ))(x+sqrt( 26/3 )) }}} Not sure if thi      Log On


   

Question 993880: Hi
i am wondering if this quadratic expression can be factored in anyway:
3x^2-26
I tried +3%28x%5E2-26%2F3%29+
+3%28x-sqrt%28+26%2F3+%29%29%28x%2Bsqrt%28+26%2F3+%29%29+
Not sure if this works :s
Found 2 solutions by Alan3354, Theo:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
3x^2-26
I tried +3%28x%5E2-26%2F3%29+
+3%28x-sqrt%28+26%2F3+%29%29%28x%2Bsqrt%28+26%2F3+%29%29+
Not sure if this works
--------------
What you did is not incorrect, but factoring implies using integers.

Answer by Theo(13342) About Me  (Show Source):
You can put this solution on YOUR website!
yes, it will work.

the two equations are equivalent.

3+%2A+%28x+-+sqrt%2826%2F3%29%29+%2A+%28x+%2B+sqrt%2826%2F3%29%29 is equal to:

which is equal to:

3+%2A+%28x%5E2+%2B+26%2F3%29

if you graph both equations, they will be identical.

here's the graph of both equations on the same graph.



since the equations are identical, it looks like one graph.

this is the graphing statement enclosed in 3 opening brackets at the beginning and 3 closing brackets at the end.

i used [ instead of { and i used ] instead of } so you can see the formula easily without having to go to the source.

[[[graph(600,600,-10,10,-30,30,3*(x^2-26/3),3*(x-sqrt(26/3))*(x+sqrt(26/3)))]]]