Question 1167874
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a)<br>
{{{4/9 = (2/3)^2}}}
{{{27/8 = (2/3)^(-3)}}}<br>
{{{((2/3)^2)^x = (2/3)^(-3)}}}
{{{(2/3)^(2x) = (2/3)^(-3)}}}
{{{2x = -3}}}
{{{x = -3/2}}}<br>
b)<br>
1 3/8 = 11/8
{{{64/121 = (11/8)^-2}}}<br>
{{{(11/8)^(2x) = (11/8)^(-2)}}}
{{{2x = -2}}}
{{{x = -1}}}<br>