naomie1
naomie1
12-08-2016
Mathematics
contestada
if x=x2+6x-40 what are the values of x?
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caylus
caylus
12-08-2016
Hello,
x²+6x-40=x
==>x²+5x-40=0
Δ=5²+4*40=185
[tex]x= \dfrac{-6-\sqrt{185}}{2} \ or \ x= \dfrac{-6+\sqrt{185}}{2} [/tex]
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