Question

simplify (5 +√2) ( 7 +√2)​

Answer 1

Answer:

$(5 + \sqrt{2} )(7 + \sqrt{2}) \\ = 5(7 + \sqrt{2} ) + \sqrt{2} (7 + \sqrt{2} ) \\ = 45 + 5 \sqrt{2} + 7 \sqrt{2} + 2 \\ = 12 \sqrt{2} + 47$

Step-by-step explanation:

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