lim x4 -81/2x2 -5x-3
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Step-by-step explanation:
limx4-81/2x^2-5x-3
=lim(x-3)(x+3)(x^2+9) / (x-3)(2x+1)
=lim(x+3)(x^2+9) / (2x+1)
=(3+3)(3^2+9) / 2(3) + 1
=6×18/7
=108/7
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