this post was submitted on 23 Nov 2024
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Even if the x-x term didn't exist, the equation is already simplified (fully factored) so there is nothing to do anyway.
No it isn't, given one of the factors is equal to zero. That's like saying 2/4 is fully simplified when clearly it isn't. Students lose marks in tests for not simplifying their answers. Writing 2/4 as an answer would only get half-marks. Similarly, the only full-marks answer to this question is 0.