Question

(2√3-3)(2√3+3) with formula tell me plz...

Answer 1

Hii friend,

=> (2✓3-3)(2✓3+3) is in the form of (A+B)(A-B) . where A = 2✓3 and B = 3

And we know that (A+B) (A-B) = (A)² - (B)²

Therefore,

=> (2✓3-3)(2✓3+3) = (2✓3)² - (3)²

=> (2)² × (✓3)² - 3 × 3

=> 4 × 3 -9

=> 12 -9 = 3....Ans.....


HOPE IT WILL HELP YOU.... :-)

Answer 2

Heya!!!

☜☆☞ Here's your answer friend,

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( 2√3 - 3 )(2√3 + 3)

= {( 2√3 )² - (3)²}
...........[ (a - b)(a + b) = a² - b² ]

therefore,

12 - 9 = 3 ......is the required answer.

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Hope it helps you : )