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souzasgui
@souzasgui
October 2020
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Da pra ajuda na 1 ao n entendi mt coisa
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LaisaB
Você deve somar os termos semelhantes na a . E diminuir os termos semelhantes na b.
a) x² - 7x +10 + ( 2x² + 9x - 15)
x² -7x + 10 + 2x² + 9x - 15
3x² + 2x - 5
b) 5x² + 20x - 7 - (3x² + 15x - 6)
5x² + 20x - 7 - 3x² - 15x + 6
2x² + 5x - 1
Se tiver gabarito confira.
0 votes
Thanks 2
souzasgui
professor tiro gabarito do livro
souzasgui
Vlw
LaisaB
De nada!
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a) x² - 7x +10 + ( 2x² + 9x - 15)
x² -7x + 10 + 2x² + 9x - 15
3x² + 2x - 5
b) 5x² + 20x - 7 - (3x² + 15x - 6)
5x² + 20x - 7 - 3x² - 15x + 6
2x² + 5x - 1
Se tiver gabarito confira.