Question

the value of 129 square - 79 square

Answer 1

(129)^2 -(79)^2

We know that a ^2 - b^2 = (a+b)(a-b)

=(129+79)(129 - 79)

=208×50 =10400

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Answer 2

Hey dude here is your answer
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129 × 129 = 79 × 79
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I hope this helps you