Exam Name___________________________________ MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Tell whether the expression is a monomial. If it is, name the variable(s) and coefficient, and give the degree of the monomial. 1) 5x2y5 1) A) Monomial; variables x, y; coefficient 5; degree 2 B) Monomial; variables x, y; coefficient 5; degree 7 C) Monomial; variables x, y; coefficient 5; degree 5 D) Not a monomial Evaluate the expression. 2) 5 7 - 4 6 2) A) 1 21 B) 1 7 C) 1 42 D) 2 7 Factor the polynomial by removing the common monomial factor. 3) 3x2 - 9x 3) A) 3x(x + 3) B) 3(x2 - 3x) C) 3x(x - 3) D) 3x2(x - 3) Reduce the rational expression to lowest terms. 4) 3x2 - 27x + 54 x - 6 4) A) 1 x - 6 B) 3x - 9 C) 3x2 - 36 D) 3x2 - 27x + 54 x - 6 List all the elements of B that belong to the given set. 5) B = {17, 8, -19, 0, 5 8 , - 8 5 , 3.3, 25Δ, 0.258258258...} Integers 5) A) {17, -19} B) {17, 0} C) {17, -19, 0} D) {17, 0, 8} Factor the polynomial by grouping. 6) 10x2 + 15x - 8x - 12 6) A) (10x - 4)(x + 3) B) (5x - 4)(2x + 3) C) (5x + 4)(2x - 3) D) (10x + 4)(x - 3) Perform the indicated operations and simplify the result. Leave the answer in factored form. 7) 1 - 1 x 8 + 1 x 7) A) 8x + 1 x - 1 B) x - 1 8x + 1 C) x + 1 8x - 1 D) x - 1 8x