Question

expand (ii) (2x - 5)²​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

= (2x - 5)^2

= (2x)^2 - 2 × 2x × 5 + (5)^2 [ (a - b)^2 = a^2 -2ab + b^2) ]

= 4x^2 - 20x + 25