Rationalize the denominator
6 - 4√3
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6 + 4√3
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6-4√3×6-4√3
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6+4√3×6+4√3
=36+48-48√3
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36+48+48√3
=84-48√3
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84+48√3
=12(7-4√3)
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12(7+4√3)
=(7-4√3)
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(7+4√3)
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