Question

find a-2 raise to power 2 using identity​

Answer 1

Answer:

$(a-2)^2=a^2+4-4a=a^2-4a+4$

Step-by-step explanation:

$(a-2)^2$

using identity:   $(a-b)^2=a^2+b^2-2ab$    , we get :

$(a-2)^2 = (a)^2+(2)^2 - 2 (a)(2)\\\\(a-2)^2=a^2+4-4a=a^2-4a+4$

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