1.

D=3+2√2-3+√2=?

Answer» 3root2
3+2√2-3+√2= 2√2+√2= 3√2
3+2√2-3+√22√2+√22+1(√2) 3√2
3+2√2-3+√2=3-3+2√2+√2=2√2+√2= (2+1) √2= (2+1) √2


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