Question

Without actually squaring, find the value of ( 45 sq - 44 sq )

Answer 1

It's simply by using algebraic formula(a²-b²)=(a+b)(a-b)
So,(45²-44²)=(45+44)(45-44)
So,(45²-44²)=89×1=89
Hence 89 is the answer.

Answer 2

hope this will help you