x=2
px³+qx+1=8p+2q+1=2010
8p+2q=2009
則x=-2
px³+qx+1
=-8p-2q+1
=-(8p+2q)+1
=-2009+1
=-2008
當(dāng)x=2是代數(shù)式px³+qx+1的值等于2010那么當(dāng)x=-2時(shí)代數(shù)式px³+qx+1的值為?A2010 B-2010 C2008 D-
當(dāng)x=2是代數(shù)式px³+qx+1的值等于2010那么當(dāng)x=-2時(shí)代數(shù)式px³+qx+1的值為?A2010 B-2010 C2008 D-
數(shù)學(xué)人氣：597 ℃時(shí)間：2020-03-25 07:29:35
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