Question

rationalize the denominators of 4-√5÷3+√5​

Answer 1

Answer:

15

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Answer 2

4-√5. 3-√5. 4(3-√5)-√5(3-√5)

---------*---------- =. --------------------------

3+√5. 3-√5. (3*3)-(√5*√5)

= 12-4√5-3√5+5

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9-5

= 12+5-4√5-3√5

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4

= 17-7√5

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4