You're going to use the AC method.
a= 2, b= -9, c= -5
ac= - 10
to find b you're going to say what factors of -10 will give you -9 when added
factors of -10 are: 1,2,5,10
-10 and +1 will give you -9 when added.
[tex]2x^{2} + x - 10x + 5 = 0[/tex]
[tex](2x^{2} + x) - (10x + 5) = 0[/tex]
*factorize here*
