Algebra Polynomials Practice Test Results

Question 1
73% answer correctly
If n = 2 what`s the value of \\(9n^2 + 9n - 19\\) ?
18
35
54
73
Question 2
59% answer correctly
\\((x - 5)(x^2 + 8x + 6)\\) = ?
\\(x^3 + 3x^2 + 34x - 29\\)
\\(x^3 + 3x^2 -34x + 30\\)
\\(x^3 + 3x^2 -34x - 30\\)
\\(x^3 + 6x^2 -34x - 30\\)
Question 3
79% answer correctly
(n + 5)(n + 9) = ?
\\(n^2\\) - 14n - 45
\\(n^2\\) - 45n + 45
\\(n^2\\) + 14n + 45
\\(n^2\\) + 14n - 45