6) EFETUE AS OPERACÕES:
a) 3x³ + 4x² - 5 - x³ - 6x² *
b) (-2x³).(3xy).(5x²y³) *
100 pontos para quem me ajudar
e tbm é uma prova isso
anacardenafernandes:
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Respostas
respondido por:
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Resposta:
a)
3x³ + 4x² - 5 - x³ - 6x²
3x³ -x³ + 4x² - 6x² - 5
2x³ - 2x² - 5
b)
( -2x³ ).(3xy ).(5x²y³)=
(-2 . 3 . 5 ) ( x³⁺¹⁺² )(y¹⁺³ )
-30.x⁶ .y⁴
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