Find the value of the expression 3x3 + 3x - 3, when x = - 1Find the mass of 0.8 litre of water if mass of each litre of water is 1.005 kg?
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3x3+3x-3.(x=-1)
3(-1)3+3(-1)-3
-3-3-3
-6-3
-9..answer
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