Question

What is (a+b)(a-b)(ab)

Answer 1

Answer:

it's a formula (a+b)^2 =(a+b) (a-b) .

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Answer 2

Answer:

(a+b) (a-b) (ab)

= [ a(a-b) + b(a-b)] (ab)

= [ (a*a) - (a*b) + (b*a) - (b*b)] (ab)

=[ a² - ab + ba - b²] (ab)

= a² - b² (ab)

= a³ - b³

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