Wen Guotai Daniel's answer to Jack Black's International Baccalaureatte Maths HL question.

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Wen Guotai Daniel
Wen Guotai Daniel's answer
66 answers (Tutor Details)
1st
Integer problem, factorization udually helps. In this case, 1009 being a prime number makes things easier. Cheers.
Wen Guotai Daniel
Wen Guotai Daniel
6 years ago
Some wrong numbers in the quadratic equation formulas (-b+-sqrt(b^2-4ac))/2a but they don't affect the conclusion. My apologies!