rationalize the denominator 2-root 7 whole/ 2 + root 7
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Step-by-step explanation:
2-√7/2+√7
= 2-√7(2-√7)/2+√7(2-√7)
=(2-√7)²/2²-√7²
=4+7-4√7/4-7
=11-4√7/-3
=-(11-4√7/3
=-11+4√7/3
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