maryammukadam2 maryammukadam2 20-10-2021 Mathematics contestada 1........... 5x (3x +2) 2..........(-7ab)(2a^2bc) (4bc^2) 3.............3x^2(X-5)-X(X^2+3X) 4............5x^2 +4y^2-(2x^2+6y^2)
