Question 1

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Donats els polinomis begin mathsize 12px style bold P bold left parenthesis bold x bold right parenthesis bold space bold equals bold space begin bold style negative 3 times x squared plus 3 times x minus 4 end style bold comma bold space bold Q bold left parenthesis bold x bold right parenthesis bold space bold equals bold space begin bold style 2 times x squared minus 2 times x end style bold space bold i bold space bold R bold left parenthesis bold x bold right parenthesis bold space bold equals bold space begin bold style negative 2 times x squared minus 3 times x end style bold space end style
Calcula begin mathsize 12px style bold P bold left parenthesis bold x bold right parenthesis bold times bold left square bracket bold Q bold left parenthesis bold x bold right parenthesis bold space bold plus bold space bold R bold left parenthesis bold x bold right parenthesis bold right square bracket bold. end style


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