I need help with this question the answer should be -2,-3/4 and 3 but I could no

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secondary 3 | A Maths
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secondary 3 A Maths Singapore

I need help with this question the answer should be -2,-3/4 and 3 but I could not get the answer the question ask to solve 4x^3-7x^2-21x+18

Date Posted: 2 years ago

done {{ upvoteCount }} Upvotes

clear {{ downvoteCount * -1 }} Downvotes

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Date Posted: 2 years ago