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Restrangeti la patrat 9x^2+24x+16.
Urgent va rooog.


Răspuns :

9x^2+24x+16.
(a+b)^2=a^2+2ab+b^2o sa fie (3x+4)^2=9x^2+24x+16.
(3x)^2+2×4×3x+4^2=(3x+4)^2