Math, asked by stefz, 5 hours ago

Using the identity (a+b) (a-b) = a2 - b2 , find the value of 39 x 43.

Answers

Answered by rjkisna6230

2

Answer:

1677

Step-by-step explanation:

according to this identity,

we have,

= 39×43

= (41-2)×(41+2)

= (41)^2-(2)^2

= 1681 - 4

= 1677

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