Algebra Exponents and Roots Practice Test Results

Question 1
62% answer correctly
What`s the square root of \\(4x^2\\) ?
\\(\\sqrt{2}x\\)
\\(2\\sqrt{x}\\)
\\(\\sqrt{2x}\\)
2x
Question 2
80% answer correctly
The square root of 49 is ?
6
7
\\(\\sqrt{7}\\)
8
Question 3
80% answer correctly
\\((5^9)^4\\) = ?
\\(5^{2.25}\\)
\\(5^5\\)
\\(5^{13}\\)
\\(5^{36}\\)