Whoops, saw that each number has to be used. Not just a few of them..that makes it more difficult.
(-1 * -2) x (-3 - (-4)) = 2
(-2 + -4) + (-1 - (-3)) = -4
(-1 + -4) - (-2 - (-3)) = -6
(-2 + (-4)) - (-3 / -1) = -9
(-2 - (-3)) - (-4 * -1) = -3
(-3 + -1) * (-4 - (-2)) = 8
(-3 + -4) * (-1 - (-2)) = -7
I think
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