y'=3x²+2x,當(dāng)x=-1時(shí),y'=3-2=1,所以該點(diǎn)的切線方程為：y-1=1*[x-(-1)]整理得：y=x+2.y'=3x²+2x,當(dāng)x=-1時(shí),y'=3-2=1,所以該點(diǎn)的切線方程為：y-1=1*[x-(-1)]整理得：y=x+2.y'=3x²+2x,當(dāng)x=-1時(shí),y'=3-2=1,所以該點(diǎn)的切線方程為：y-1=1*[x-(-1)]整理得：y=x+2.y'=3x²+2x,當(dāng)x=-1時(shí),y'=3-2=1,所以該點(diǎn)的切線方程為：y-1=1*[x-(-1)]整理得：y=x+2.y'=3x²+2x,當(dāng)x=-1時(shí),y'=3-2=1,所以該點(diǎn)的切線方程為：y-1=1*[x-(-1)]整理得：y=x+2.y'=3x²+2x,當(dāng)x=-1時(shí),y'=3-2=1,所以該點(diǎn)的切線方程為：y-1=1*[x-(-1)]整理得：y=x+2.y'=3x²+2x,當(dāng)x=-1時(shí),y'=3-2=1,所以該點(diǎn)的切線方程為：y-1=1*[x-(-1)]整理得：y=x+2.y'=3x²+2x,當(dāng)x=-1時(shí),y'=3-2=1,所以該點(diǎn)的切線方程為：y-1=1*[x-(-1)]整理得：y=x+2.