Question

Please give step by step explanation​

Answer 1

(xy – ab) × (xy + ab)

= xy.(xy – ab) + ab(xy – ab)

= x2y2 – abxy + abxy – a2b2

= x2y2 – a2b2

here is your answer

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Answer 2

Answer:

maybe ( b) one

using the formula (a+b) (a-b)= a²-b²

(xy - ab) (xy + ab)= x²y² - a²b²

Step-by-step explanation:

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