Question

Simplify (2x-V5) (2x-V5) using identify.​

Answer 1

Answer:

(a-b)² = a² + b² - 2ab

2x² + v5² - 2x2xxv5

4x² + v²25 - 4xv10

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Answer 2

Step-by-step explanation:

(2x - √5) ( 2x - √5)

(a - b) (a - b) = (a - b) ^2

(2x - √5 )^ 2

( a-b) ^2 = a^2 +b^2 - 2ab

(2x) ^2 + (√5)^2 - 2 (2x) (√5)

4x ^2 + 5 - 4√5x

4x^2 - 4√5x + 5 ___ Ans

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