Math, asked by bandana81, 5 months ago

simply...plz ans me

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Answered by sneha697094

1

Answer:

(2√5-5√7)²

= 20+175-20√35

= 195-20√35

Answered by bharti66labbu

0

Answer:

use the formula (a-b)²= a²-b²+2ab

(2√5)²-(5√7)²+2×2√5×5√7

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