1. ((-9 - -8 + 3 * -1) * (-9 * -2 * 4 + -6)) =
2. ((-6 * 9 - -5 + 8) * (-8 * -6 - -1 * 0)) =
3. ((5 * -2 + 8 * 1) * (9 + -3 * -8 - -5)) =
4. ((-1 * -5 - -3 + -9) + (-5 - 3 * -2 - 5)) =
5. ((1 - 6 * 0 - -7) * (6 * 0 + 6 - -3)) =
