Algebra Polynomials Practice Test Results

Question 1
67% answer correctly
If n = 5 what`s the value of \\(3n^2 - 9n + 17\\) ?
47
30
13
120
Question 2
60% answer correctly
\\((x - 2)(x^2 + 5x + 5)\\) = ?
\\(x^3 + 3x^2 -5x + 10\\)
\\(x^3 + 3x^2 + 5x - 9\\)
\\(x^3 + 6x^2 -5x - 10\\)
\\(x^3 + 3x^2 -5x - 10\\)
Question 3
82% answer correctly
(n + 4)(n + 7) = ?
\\(n^2\\) - 11n + 28
\\(n^2\\) - 28n - 28
\\(n^2\\) + 28n - 28
\\(n^2\\) + 11n + 28