(-3x²y³)(x²-1)-(x²-1)×5x²y³
问题描述:
(-3x²y³)(x²-1)-(x²-1)×5x²y³
答
(-3x²y³)(x²-1)-(x²-1)×5x²y³=(x²-1)(-3x²y³-5x²y³)
=-8x²y³(x+1)(x-1)