2x^2+5x+1
can this be factorised?
Suppose it can be factorised then we would have:Originally Posted by x-disturbed-x
,
for some and . But when , or
the RHS of the last equation is zero.
Therefore and are the roots of the quadratic
on the LHS.
The quadratic formula will give the roots of ,
which will then allow you to factorise this quadratic.
RonL
Actually it's pretty simple simply plug in the values of
A=2
B=5
C=1
into the quadratic equation