Question

IV. Answer the following
1. a) Subtract: 9xy(2x* - 3) from 15x(xy + 5).
b) Multiply: 7xyand (2x + 5x+y - 1).​

Answer 1

Step-by-step explanation:

15x(xy+5)-[9xy(2x*-3) ]

=15x²y+75x-(18x²y-27xy)

=15x²y+75x-18x²y-27xy

=15x²y-18x²y+75x-27xy

=-3x²y+75x-27xy

Answer 2

Answer:

Here is your answer

Step-by-step explanation:

a) 15x(xy + 5)-9xy(2x - 3)

15x²y+75x-18x²y+27xy

-3x²y+75x+27xy

-3(x²y-25x-9xy)

b) 7xy*(2x+5x+y+1)

14x²y+35x²y+7x²y+17xy

please mark me brainlist