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Answer:
6) 1+√2
7) 1-√2
Step-by-step explanation:
6) √3+2√2 can also be written as√1+2√2+2. By (a+b)^2=(a^2+2ab+b^2)(1+√2)^2=1+√2
7) √3-2√2. can also be written as √1-2√2+2. By (a-b)^2=(a^2-2ab+b^2)
√(1-√2)^2=1-√2
hope it helped you
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