Stitz-Zeager_College_Algebra_e-book

# The 4 2 reader is encouraged to verify that it also

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Unformatted text preview: 8.6.2 Answers 1. (a) (b) (c) (d) (e) (f) A B + x−3 x+5 B C A + + x x − 2 (x − 2)2 A Bx + C +2 7x − 6 x +9 A B C D Ex + F + 2+ 3+ +2 x x x 5x + 9 3x + 7x + 9 B C D E Fx + G Hx + I A + + + + +2 +2 2 3 4 5 x + 4 (x + 4) (x + 4) (x + 4) (x + 4) x +1 (x + 1)2 A B C Dx + E Fx + G + + +2 +2 x 4x − 1 (4x − 1)2 x +5 9x + 16 1 1 2x = + −1 x+1 x−1 −7x + 43 5 4 (b) = − 2 + 19x − 14 3x 3x − 2 x + 7 2 − 5x − 10 3 2 4 11x = + 2− (c) 5x3 − 5x2 xx 5(x − 1) 2. (a) x2 −2x2 + 20x − 68 9 7x − 8 =− + x3 + 4x2 + 4x + 16 x + 4 x2 + 4 −x2 + 15 1 3 (e) = − 4 + 40x2 + 36 2 + 1) 2 + 9) 4x 2(x 4(x (d) 6 3x + 5 −21x2 + x − 16 =− −2 3 + 4 x2 − 3x + 2 3x x + 2 3x − 2x + 1 4 − 34x3 + 70x2 − 33x − 19 5x 9 1 (g) = 5x2 − 4x + 1 + − (x − 3)2 x − 3 (x − 3)2 (f) x6 + 5x5 + 16x4 + 80x3 − 2x2 + 6x − 43 x+1 3 = x3 + 2 − 3 + 5x2 + 16x + 80 x x + 16 x + 5 2 − 76x − 208 −7x 7 8 4 (i) 3 =− + − 2 + 108x + 216 2 x + 18x x + 6 (x + 6) (x + 6)3 (h) (j) −10x4 + x3 − 19x2 + x −...
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## This note was uploaded on 05/03/2013 for the course MATH Algebra taught by Professor Wong during the Fall '13 term at Chicago Academy High School.

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