Question

plz answer this........ ​

Answer 1

Using (a-b)² identity ,

(a-b)² = a² -2ab + b²

(3√5 - 4√3 ) ² = (3√5)² - 2×3√5×4√3 + (4√3)²

=> 45 - 24√15 + 36

=> 81 - 24√15

= 3 ( 27 + 8√15 )

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Answer 2

Answer:

I hope its helpfull for you.