原式=∫(-4,3)|x+2|dx (∫(-4,3)表示从-4到3积分)=∫(-4,-2)|x+2|dx+∫(-2,3)|x+2|dx=-∫(-4,-2)(x+2)dx+∫(-2,3)(x+2)dx=-(x²/2+2x)|(-4,-2)+(x²/2+2x)|(-2,3)=-(4/2-4-16/2+8)+(9/2+6-4/2+4)=29/2....