Respostas

2013-07-04T15:07:59-03:00
(x,xq)
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x+xq=24
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x=2q
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2q+2q*q=24
2q+2q²=24
2q²+2q-24=0
q²+q-12=0
Δ=1+48
Δ=49
q=(-1+/-7)/2
q=-4
q=3
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a razão é positiva
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q=3

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