Question

If a= ( 2 - √5 ) and b = ( 2 + √5 )

( 2 + √5 ) ( 2 - √5 )

Find : a² - b²​

Answer 1

Answer:

Answer is = -144√5

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Answer 2

Answer:

-1

Step-by-step explanation:

2^2=4

√5^2=5

4-5=-1

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