1.

62*e^2 - 72*e - 13=0

Answer»

correct answer isx = -1, x = -13/6

6x^2-7x-13=0, 6x^2-13x-6x-13=x(6x-13)+1(6x-13)=(6x-13)(x+1); 6x=13; x=13/6; x=-1



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