Question

simplify 8(5 root 2+1) by ( Root2+1)2-(root2-1)2

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

Step-by-step explanation:

the answer is only 5 root 2+1 not 10 root 2 +2.

how base 2 came it is only 8 by rationalising it is wrong.