Question 1204135


{{{ 10x^2+19x-15}}} 

= {{{10x^2+25x-6x -15}}} 

= {{{(10x^2-6x)+(25x -15)}}} 

= {{{2x(5x-3)+5(5x -3)}}} 

={{{(5x - 3) (2x + 5)}}}