# Trabalho quatroprecalculo.doc

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Published on February 27, 2014

Author: carlosalbertoalbuquerque9

Source: slideshare.net

TRABALHO IV Disciplina Ano Período Pré-Calculo 2014 Integral Curso Modalidade Professor Engenharia Civil Superior Carlos Alberto de Albuquerque Data: __/__/2014 Nome: __________________________________________________________________________________ 1) Coloque os fatores comum em evidência: a) x  2 2   x  2 3 c) 43x  2 3x  5  3x  5 3 3 b) 6 x 5 y 3  3 y 4 x 6   4 d) 5x 3 3x  13  3x 2 3x  1 3  3x  24  2 5 2) Simplifique: x pq a) p q  x   x  b) x p 1 2 p 1 2 1   x mn  n c)  n2     x  3) Reduza a termos de menor grau (simplifique): 5x 2  8x  3  a) 25 x 2  9 x3  a3  b) xa c) x  h  2  x 2 h  1

4) Faça as operações indicadas. a) x 2  7 x  12 x 3  6 x 2  9 x   x2  9 x3  4x 2 b) x2  4 y2  x 2  xy  2 y 2  xy  2 y 2 c) 1 1   xh x d) 2 3 4x  2   2  x 1 x  1 x 1   5) Simplifique as frações. y a) x2 y y2  2 3 x2  c) 4 x x x  x 1 b) x  x 1 x x 1  x x 1 1 1  x a  d) xa 2

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