Question

Find the square of (2x - 3).

Answer 1

Answer:

Step-by-step explanation:

(2x-3)² =  (2x)² - 2(2x)(3) + (3)²             [(a-b)² = a²-2ab+b²]

     =4x²-12x+9

Answer 2

(2x-3)²

Using identity (a-b)² = a²+b²-2ab

= (2x)²+(3)²-2×2x×3

= 4x²+9-12x

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