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Calculati:

(3x+5)(9x la patrat -15x+25)=


Răspuns :

(3x+5)(9x^2-15x+25)

(9x^2-15x+25) = (3x+5)^2

(3x+5)(3x+5)^2 = (3x+5)^3.


Sper că te-am ajutat :)
(3x+5)(9x²-15x+25)=
27x³-45x²+75x+45x²-75x+125=
27x³+125