Question: limx 2 x 2 + 6 x + 8 x + 2 lim _ { x to - 2 } frac {

limx2x2+6x+8x+2\lim_{x \to -2}\frac{x^2+6x +8}{x +2}limx2x+2x2+6x+8, notice that direct substitution of x=2x =-2x=2

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