Quiz 3- (Prequiz) - PreCalculus PreQuiz #3 Objectives: You...

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Unformatted text preview: PreCalculus PreQuiz #3 Objectives: You will be able to factor polynomials using a variety of methods including recognizing difference of two squares and perfect square trinomials; removing common factors; factoring a trinomial with binomial factors; and factoring by grouping You will be able to identify the domain of a function You will be able to write a rational expression in reduced form You will be able to add, subtract,multiply, and divide rational expressions Name___________________________________ Date__________________ Show ALL work to recieve full credit. Simplify all answers 1) x4 - 10x2 Factor the polynomial 2) 12x2 + 15x - 16x - 20 Factor the polynomials 3) x2 + 2x - 80 Factor the polynomials 4) 20y2 - 23y + 6 Factor the polynomials 5) 25x2 - 4y2 Simplify the rational expression. 2x + 10 6) 5x2 + 29x + 20 Find domain of the function. 7) f(x) = 25 - x2 Multiplying rational expressions x2 + 6x x2 + 14x + 45 8) x2 + 15x + 54 x2 - 2x - 35 Dividing rational expressions x2 + 4x x2 + 8x + 16 9) x2 + 13x + 36 x2 + 19x + 90 Add. Simplify the result, if possible. x2 - 7x 10 10) + x - 2 x - 2 Perform the indicated operations. Simplify the result, if possible. 4 5 11) + x x + 9 x - 6 4x - 5 + 2 + 4x - 32 x2 + 5x - 24 x 12) 1 Answer Key Testname: QUIZ 3 (PREQUIZ) 1) 2) 3) 4) 5) x2 (x2 - 10) (3x - 4)(4x + 5) (x + 10)(x - 8) (4y - 3)(5y - 2) (5x + 2y)(5x - 2y) 2 6) 5x + 4 7) Domain = [-5,5]; range = [0,5] x 8) x - 7 9) x + 10 x 10) x - 5 9x + 36 11) x(x + 9) 12) 5x2 - 30x + 38 (x + 8)(x - 4)(x - 3) 2 ...
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This note was uploaded on 02/03/2012 for the course MATH 101 taught by Professor Lee during the Spring '11 term at International Institute for Higher Education.

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