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What is the product of the radical expression (-7squate root 2)(8+suare root 2)

What is the product of the radical expression (-7squate root 2)(8+suare root 2)
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What is the product of the radical expression (-7squate root 2)(8+suare root 2)

User Peter Bloomfield
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Assuming that 7 is multiplied by sqrt(2), we have -7*sqrt(2)*8+sqrt(2)*sqrt(2)*-7 using the distributive property, then getting -56sqrt(2)+2*7=56sqrt(2)+14
User Unional
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