John Oon's answer to Nathaniel Soon's Secondary 4 A Maths Singapore question.

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John Oon
John Oon's answer
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John Oon
John Oon
2 years ago
(2x-3)^2 is always positive. When x greater than 3, 2x(x-3) is always positive. when x is less than 0, 2x (x-3) is always positive.