Question

Give the formula for :(a^2-b^2)

Answer 1

$a ^{2} - b^{2} = (a + b)(a - b)$

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Answer 2

a^2 - b^2 = (a + b)(a - b)

Verification:-

(a + b)(a - b)

= a^ 2 + ab -b^2 -ab

= a^2 - b^2

Since, Left Sided Expression(LSE) = Right Sided Expression(RSE)

Therefore, the above equation is true for all values af 'a' and 'b'.