(3√5)² =
3² * (√5)² =
9 * 5 =
45
3² * (√5)² =
9 * 5 =
45
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45
square both parts of it...3^2 = 9 and √5^2 = 5 followed by 9 x 5 = 45
square both parts of it...3^2 = 9 and √5^2 = 5 followed by 9 x 5 = 45
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Dude it's 2012, use a calculator.
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3√5
√5*9
√45^2=45
√5*9
√45^2=45