(-1,7+3,64÷(-1,4))÷(-0,001)×(-0,4)​

( - 1.7 + 3.64 \div ( - 1.4)) \div ( - 0.001) \times ( - 0.4) = - 1720\\ 3.64 \div ( - 1.4) = - 2.6 \\ - 1.7 - 2.6 = - 4.3 \\ - 4.3 \div ( - 0.001) = 4300 \\ 4300 \times ( - 0.4) = - 1720