QuestionAugust 27, 2025

Select the correct answer. What is this expression in simplified form? 5sqrt (2)cdot 9sqrt (6) A. 90 B. 45sqrt (3) C. 45sqrt (2) D. 90sqrt (3)

Select the correct answer. What is this expression in simplified form? 5sqrt (2)cdot 9sqrt (6) A. 90 B. 45sqrt (3) C. 45sqrt (2) D. 90sqrt (3)
Select the correct answer.
What is this expression in simplified form?
5sqrt (2)cdot 9sqrt (6)
A. 90
B. 45sqrt (3)
C. 45sqrt (2)
D. 90sqrt (3)

Solution
4.7(192 votes)

Answer

D. 90\sqrt{3} Explanation 1. Multiply the coefficients Multiply 5 and 9 to get 45. 2. Multiply the radicals Multiply \sqrt{2} and \sqrt{6} to get \sqrt{12}. 3. Simplify the radical \sqrt{12} = \sqrt{4 \cdot 3} = 2\sqrt{3}. 4. Combine results Multiply 45 by 2\sqrt{3} to get 90\sqrt{3}.

Explanation

1. Multiply the coefficients<br /> Multiply 5 and 9 to get 45.<br />2. Multiply the radicals<br /> Multiply $\sqrt{2}$ and $\sqrt{6}$ to get $\sqrt{12}$.<br />3. Simplify the radical<br /> $\sqrt{12} = \sqrt{4 \cdot 3} = 2\sqrt{3}$.<br />4. Combine results<br /> Multiply 45 by $2\sqrt{3}$ to get $90\sqrt{3}$.
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