rationalize the denominator 2/ ( under root 7 + under root 5 )
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Correct Question:2÷root7+root5
=2÷(root7+root5)×(root7-root5)÷(root7-root5)
= 2(root7-root5)÷(root7)²-(root5)²
= 2(root7-root5)÷7-5
= 2(root7-root5)÷2
2 and 2 will get cancelled,
=root7-root5
Step-by-step explanation:
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