Teo Jer Rei's answer to hyeongjun best boy's Secondary 2 Maths Singapore question.

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Teo Jer Rei
Teo Jer Rei's answer
12 answers (A Helpful Person)
We let m=10, because that way, we can convert 473 into the quadratic equation we found in (a), which we can then simplify and find the factors

Hope this helps!