Question

38×(-7)+5[(2)³(-3²)-(-2²)]-38×3的39次方÷(-3)的38次方等于？

Answer 1

38×(-7)+5[(2)³(-3²)-(-2²)]-38×3的39次方÷(-3)的38次方
=-38×7+5[8×(-9)-(-4)] - 38×3的39次方÷3的38次方
=-38×7+5[-72+4] - 38×(3的39次方÷3的38次方)

=-38×7+5×(-68) - 38×3
=-38×(7+3) - 5×68
=-38×10 - 340
=-380-340
=-720

Answer 2

38×(-7)+5x[(2)³(-3²)-(-2²)]-38×3的39次方÷(-3)的38次方
=-266+5x(-8x9+4)-38x3的39次方÷3的38次方
=-266+5x（-72+4）-38x3
=-266-5x68-114
=-266-144-340
=-410-340
=-750