Đáp án:
$A=x=±\sqrt[100]{3,978586.10^{87}}$
Giải thích các bước giải:
`A=x^{100}-8^97=0`
`↔A=x^{100}=3,978586.10^87`
$↔A=x=±\sqrt[100]{3,978586.10^{87}}$
Vậy: $A=x=±\sqrt[100]{3,978586.10^{87}}$
x=`\root{100}{8^97}`
Ta có:
A=`x^100` -`8^97`=0
`=> x^100=8^97`
`=>x=±\root{100}{8^97}`
Vậy....
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