Question

find the product of 2/7a(ab-7/6ab²) when the value of a=2 and b=-5​

Answer 1

Answer:

2/7*2(10-7/6*2*25)

4/7(10-350/6)

4/7(60-350)/6

4/7(290/6)

4/7*290/6

2/7*290/3

580/21

27 13/21