Math, asked by yashgupta2023, 1 year ago

evaluate 69*71
step by step​

Answers

Answered by Aryan5101520
59

Answer:

69 x 71

(70-1) * (70+1)

using (a+b)( a - b)= a square + b square

=(70)square +(1)sqaure

=4900+1

=4901

Answered by brainlytopper1
52

Answer:

With

Step-by-step explanation:

69*71= (70-1) (70+1).

Using the identity (a^2-b^2)=(a+b)(a-b)]

(70)^2-(1)^2

4900-1

4899

HOPE IT HELPS...

PLZ MARK AS BRAINIEST

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