(a+(x/2))^2=a^2+2*a*(x/2)+(x^2)/4=a^2+ax+(x^2)/4.
формула:
(a+b)^2=a^2+2ab+b^2
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Verified answer
(a+(x/2))^2=a^2+2*a*(x/2)+(x^2)/4=a^2+ax+(x^2)/4.
формула:
(a+b)^2=a^2+2ab+b^2