jamie-robinson_60aee7ceb6604
jamie-robinson_60aee7ceb6604
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10^x ={ [a thousand^5]^(a million/x) } /10² 10^x * 10²={ [a thousand^5]^(a million/x) } 10^(x+2)=[10^15]^(a million/x) 10^(x+2)=10^(15/x) x+2=15/x x²+2x=15 x²+2x-15=0 x'=[-2+(4+60)¹/²]/2=3 x'=[-2-(4+60)¹/²]/2=-5 Soma=3-5=-2 Letra A