3x-2x2+4x-4=

the problem is 3, times minus 2 to the second power, plus four times minus 4
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1 Answer

I assume this is what you meant:

3 x (-2)^2 + 4 x (-4)
= 3 x 4 + (4 x -4)
= (3 x 4) + (4 x -4)
= 12 + (-16)
= 12 - 16
= -4
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