Question

using identities evaluate (2x-3)^2
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Answer 1

Answer:

4x^2+9-12x

Step-by-step explanation:

using identity - a^2+b^2-2ab

(2x^2)+(3)^2-2×2x × 3

4x^2+9-12x

Answer 2

Answer:

$4x^{2} - 12x + 9$

Step-by-step explanation:

$(a-b)^{2}= a^{2} - 2ab + b^{2} \\ Therefore, (2x)^{2} - 2*2x*3 + (3)^{2}\\ =4x^{2} - 12x + 9$