Algebra Practice Test Results

Question 1
78% answer correctly
Solve this equation for a: \\(a = \\frac{b^6}{b^2}\\)
\\(b^4\\)
\\(b^{-4}\\)
\\(b^{\\frac{2}{6}}\\)
-4b
Question 2
73% answer correctly
What`s the greatest common factor of 64 and 56?
8
120
16
4
Question 3
66% answer correctly
If x = 4, what`s the value of \\(9x^3 + 7x^2 - 2x - 12\\) ?
692
444
152
668