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JaineCristine
@JaineCristine
October 2020
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determine a forma fatorada dos polinômios dados abaixo: a) x² - 5x + 3x - 15
b) 4x - 8
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nandofilho10
x² - 5x + 3x - 15 =
x² - 2x - 15 = 0
encontra as duas raízes ...
x1 = 5
x2 = -3
a(x - x1) . (x-x2) =
( x - 5) ( x+3)
b) 4x - 8
fator comum é o 4
4 ( 4x/4 - 8 / 4) =
4 ( x - 8)
2 votes
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JaineCristine
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x² - 2x - 15 = 0
encontra as duas raízes ...
x1 = 5
x2 = -3
a(x - x1) . (x-x2) = ( x - 5) ( x+3)
b) 4x - 8
fator comum é o 4
4 ( 4x/4 - 8 / 4) = 4 ( x - 8)