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Answer:
(a+b)(a-b)
a(a - b) + b (a - b)
= a^2 - ab + ab - b^2
=a^2 - b^2
Step-by-step explanation:
- distribute a(a-b)
- distribute b(a-b)
- add like-terms
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Answer:
(a+b)(a-b)
a(a - b) + b (a - b)
= a^2 - ab + ab - b^2
=a^2 - b^2
Step-by-step explanation: