If you mean: (3x-1)(x+1) = 0, then it is 3x squared+2x-1 = 0.
Its solutions are: x = 1/3 or x = -1.
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No, but 3 * 10 is equal to 30.
30 ml is equal to 30 cm3
30 centimetres are equal to .3 metres.
29 - 1 will always equal 28. 29 - -1 will equal 30.
30% = 0.30