The expression is .
Consider .
Apply exponents property : .
Apply power-reducing formula : .
\ \
.
The simplified expression is .
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..![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=b1519953aa5395f854d26af2d02c82cd.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=8ef64086686e624129e8cdee01ebf3fe.png\")
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.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=8e19914a648a2cab7164710d76f1e739.png\")
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.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=8cf181ce12d3bce0ac5b07e3c510d666.png\")
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\ \
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.![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
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.