please answer both questions
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Answer:
hope this helps you
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MRDynamite:
in first question, the identity used is (a+b)^2
I apologize. the identity used is (a-b)^2 = a^2 - 2ab + b^2
thanks
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Step-by-step explanation:
1.
7.6×7.6=57.76
4.6×4.6=21.16
57.76-21.16=36.6
36.6÷3=12.2
2.
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