Rationalize the denominator 5/4-√7
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Answer:
20+5root7/9
Step-by-step explanation:
5/4-root7
=5/4-root7 * 4+root7/4+root7
=5(4+root7)/(4)^2-(root7)^2
=20+5root7/16-7
=20+5root7/9
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