Question 734238

{{{10y^2 - 5y - 5}}}


{{{5(2y^2 -y -1)}}}...write {{{-y}}} as {{{-2y+y}}}


{{{5(2y^2-2y+y -1)}}}...group


{{{5((2y^2 -2y)+(y -1))}}}


{{{5(2y(y -1)+1(y -1))}}}


{{{5(2y+1)(y-1))}}}