Question

please find answers I need to check my answers​

Answer 1

Answer:

1. 15a^4b^2 - 20a^3b^3 + 30a^2b^4

2. -12x^4y^2 + 9x^3y^3 - 12x^3y + 15x^2y^2

Step-by-step explanation:

1.

5a^2b^2 x 3a^2 - 5a^2b^2 x 4ab + 5a^2b^2 x 6b^2

= 15a^4b^2 - 20a^3b^3 + 30a^2b^4

2.

-3x^2y x 4x^2y - (-3x^2y) x -3xy^2 + (-3x^2y) - (-3x^2y) x -5y

= -12x^4y^2 + 9x^3y^3 - 12x^3y + 15x^2y^2