Question

The square of the sum of two numbers is 784. The sum of

Let the two numbers be a and b ATQ a b 784 So, a b 2ab 784 Also, we have, a b 520 So, 2ab 784 - 520 264 So, ab 264 2 132

squares of these numbers is 520. Find their product.

A 140

B 192

C 132

D 170

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