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GustavoPortela2017
@GustavoPortela2017
December 2019
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Qual o resultado de (x+1)(x-3)=-3 preciso do paso a passo
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NahLuiza
(x+1)(x-3)=-3
x*x-3*x+1*x-3*1=-3
x
²-3x+x-3=-3
x²-2x=-3+3
x²-2x=0
Δ=(-2)²-4*1*0
Δ=4
√Δ=2
x=-b+-√Δ/2*a
x=2+-2/2
x'=2+2/2=2
x"=2-2/2=0
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x*x-3*x+1*x-3*1=-3
x²-3x+x-3=-3
x²-2x=-3+3
x²-2x=0
Δ=(-2)²-4*1*0
Δ=4
√Δ=2
x=-b+-√Δ/2*a
x=2+-2/2
x'=2+2/2=2
x"=2-2/2=0