12а(а+4)-3а(4а-1)-50(а+2)-а

Question

12а(а+4)-3а(4а-1)-50(а+2)-а

Answer 1

12а(а+4)-3а(4а-1)-50(а+2)-а=12а²+48а-12а²+3а-50а-100-а=-100

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Answer 2

12a^2+48a-12a^2+3a-50a-100-a=-100