Question

Expand (7x- 4y)" by using binomial theorem​

Answer 1

Answer:

if x:y=8:9 than

7(8)-4(9):3(8)+2(9)

=56-36:24+18

=20:42

=10:21

Answer 2

Answer:

if x:y=8:9 than

7(8)-4(9):3(8)+2(9)

=56-36:24+18

=20:42

=10:21

Step-by-step explanation: