Algebra Polynomials Practice Test Results

Question 1
60% answer correctly
\\((x - 4)(x^2 + 7x + 5)\\) = ?
\\(x^3 + 3x^2 -23x + 20\\)
\\(x^3 + 6x^2 -23x - 20\\)
\\(x^3 + 3x^2 -23x - 20\\)
\\(x^3 + 3x^2 + 23x - 19\\)
Question 2
64% answer correctly
\\((x - 5)(x^2 + 9x + 6)\\) = ?
\\(x^3 + 4x^2 -39x - 30\\)
\\(x^3 + 4x^2 -39x + 30\\)
\\(x^3 + 8x^2 -39x - 30\\)
\\(x^3 + 4x^2 + 39x - 29\\)
Question 3
87% answer correctly
(n + 6)(n + 4) = ?
\\(n^2\\) + 10n - 24
\\(n^2\\) - 10n - 24
\\(n^2\\) - 10n + 24
\\(n^2\\) + 10n + 24