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what is the exact value of the expression the square root 72. − the square root of 8. the square root of 128.? simplify if possible.

User Sanjeewa
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√(72) = √(36 * 2) = √(36) * √(2) = 6 * √(2) = 6 √(2)

√(8) = √(4 * 2) = √(4) * √(2) = 2 * √(2) = 2 √(2)

√(128) = √(64 * 2) = √(64) * √(2) = 8 * √(2) = 8 √(2)

User Francina
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