Question

evaluate (69x71) , I WONDER WHAT WILL BE THE ANSWER

Answer 1

$\huge \pink{ \boxed{ \sf{ \green{Answer:-}}}}$

According to question:

$= (69)(71)$

$= (70 - 1)(70 + 1)$

$[(x - y)(x + y) = {x}^{2} - {y}^{2}]$

$= > {(70)}^{2} - {(1)}^{2}$

$= 4900 - 1$

$= 4899$

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