please ada yg tau!!!! ku mohon

2) a. (-3x) × (-3x) × (-3x) = -27x³
b. 2p-pq+4qp+5q+3
2p+5q-pq+4qp+3
2p+5q+3qp+3
c. 3-2x+3x²-5x-7
3x²-2x-5x+3-7
3x²-7x-4
d. 2x+5y²-3x-5y²+5
5y²-5y²+2x-3x+5
-x+5
e. 2x+5y-3+5x+2xy+2
2x+5x+5y+2xy-3+2
7x+5y+2xy-1

3. A) 5pq . 2p^2q = 10p^3q^2
B) (-2x)(-3y)(5x^2) = 30x^3y
C) (-5x^2)(2x^2)(5) = -50x^4
D) 4p^3q^2 : 2p^2q^2
= 2p
E) -3a^6b^3c^5 : -a^3bc^2
=3a^3b^2c^3