Question

6. Simplify the following expressions
a) (2√5 - 3√7)²​

Answer 1

Answer:

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Given :  (2√5 + 3√2)²

= (2√5)² + (3√2)² + 2(2√5 )( 3√2)

[By using identity , (a + b)²  = a² + b² + 2ab]

= 4 × 5 + 9 × 2 + 12√10

= 20 + 18 + 12√10

= 38 + 12√10

${\mathfrak{\blue{☆ \: I \: hope \: its \: help \: you \: ☆}}}$

Answer 2

Hope it helps. Please find the below attached