How do you evaluate $x^-3$ for $x=2$ ?

Apr 20, 2018

$1/8$

$"using the "color(blue)"law of exponents"$

$•color(white)(x)a^-mhArr1/a^m$

$rArr2^-3=1/2^3=1/8$

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How do you evaluate x^-3x^-3 for x=2x=2?