Answer
$(3m+5)(5m-3)$
Work Step by Step
$15m^2-16m-15$
Factors of -15: 1 and -15, 3 and -5, 5 and -3, 15 and -1
Factors of 15: 1 and 15, 3 and 5, -1 and -15, -3 and -5
$(3m-5)(-5m+3)$
$3m*-5m+3m*3+(-5)(-5m)+3*-5$
$15m^2+9m+25m-15$
$15m^2+34m-15$
$(3m+5)(5m-3)$
$3m*5m+3m*-3+5*5m+5*-3$
$15m^2-9m+25m-15$
$15m^2+16m-15$
