Algebra Polynomials Practice Test Results

Question 1
85% answer correctly
(n + 9)(n + 6) = ?
\\(n^2\\) - 54n - 54
\\(n^2\\) + 54n - 54
\\(n^2\\) + 15n + 54
\\(n^2\\) - 54n + 54
Question 2
63% answer correctly
\\((x - 4)(x^2 + 6x + 4)\\) = ?
\\(x^3 + 2x^2 + 20x - 15\\)
\\(x^3 + 2x^2 -20x - 16\\)
\\(x^3 + 4x^2 -20x - 16\\)
\\(x^3 + 2x^2 -20x + 16\\)
Question 3
64% answer correctly
\\((x - 5)(x^2 + 9x + 6)\\) = ?
\\(x^3 + 4x^2 + 39x - 29\\)
\\(x^3 + 4x^2 -39x + 30\\)
\\(x^3 + 4x^2 -39x - 30\\)
\\(x^3 + 8x^2 -39x - 30\\)