concainit1234
concainit1234
22-08-2021
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(x+3)=(x[tex]x^{2}[/tex]-3x+9)
Respuesta :
prishagupta035
prishagupta035
22-08-2021
(x+3)=(x²-3x+9)
= (x+3)(x²-3x+9)
= x(x²-3x+9)+3(x²-3x+9)
= x³-3x²+9x+3x²-9x+27 her +and- get cancel or
like terms
= x³+27
x³= 27
x= ³√27
x= 3
please mark this answer as brainlist
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