Question 803006
solve this equation: {{{ 4x^(-1/7)=1 }}}
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{{{4x^(-1/7)=1}}}
{{{x^(-1/7)=1/4}}}
raise both sides to -7 power
{{{x=(1/4)^-7)}}}
{{{x=1/(4^-7)=4^7}}}
..
Check:
{{{4x^(-1/7)=4*(4^7)^(-1/7)=4*(4^-1)=4^0=1}}}