Delhi Police Head Constable 12 Oct 2022 Shift 2

Question : 29 of 100

Marks: +1, -0

The sum of the coefficients of x4 y2 and x2 y4 in the product of (-3xy2 + 1) and 7x3 - 5x2 y - 2y3 + 3xy2 + 2x - 5 is _______.