Question

9x²-12x+20
Solve it by factorization method ??? Fast plz
$99x {?}^{2}$
solve this

Answer 1

Solving for the question in the attachment..
6m²-11mn-10n²
=6m²-15mn+4mn-10n²
=3m(2m-5n)+2n(2m-5n)
=(2m-5n)(3m+2n)=0
2m-5n=0 or 3m+2n=0
Now, for the question you wrote....
I can't find or factorise it.. there must be a mistake!!! Give this question a view...
if 9x²-11x-20 is the question...
9x²-20x+9x-20
9x(x+1)+20(x+1)
so, (9x+20)=0 or (x+1)=0!