Descompuneti folosind formula diferentei de patrate: 36(x+2)^2-25(x-1)^2

Răspuns :

36(x+2)²-25(x-1)²=

36x²+144x+144-25x²+50x-25=

(36x²-25x²)+(144x+50x)+(144-25)=

11x²+194x+119

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