Question

(a+b) + (a-b)= ? please answer it's urgent​

Answer 1

Answer:

(a² - b²)

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Answer 2

Answer:

Step-by-step explanation:

(a-b) = a^2 - ab + ab -b^2 = a^2 - b^2, the famous formula for the difference of two squares. You have to multiply each of the terms with every one from the other bracket in order to fully expand the brackets.