oscar-mason_60c14e95817c3
oscar-mason_60c14e95817c3
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x^3 - x^2 - 18x + 18 = 0. Factor by grouping. Group the first two and last two terms separately. First group: x^3 - x^2. Factor out x^2 = x^2(x - 1). Come back to this later. Second group: 18x + 18. Factor out 18 = 18(x - 1). Put the t…