Question

(7pq +4ab)² find by using identity 1 in algebra please give answer fast it's important​

Answer 1

2

(7pq+4ab)

we know that,

2 2 2

(a+b) = a +(2ab)+b

that the format use

a=7pq ,b=4ab

2

(7pq +4ab ) =

2 2

7pq +(2×7pq ×4ab )+4ab

2 2

:49pq +(2×7pq ×4ab)+4ab

2 2

49pq +56pqab +4ab

2 2

49pq +56pqab +16ab