The coefficient of x2 in (7x - 5)(5x2 - 3x + 1) is .
-46
16
-16
46
The coefficient of x2 in (7x - 5) (5x2 - 3x +1) = -25x2-21x2 = - 46x2
The coefficient of x2 in (3x+x3)(x+1x) is