Boy Mow Chau's answer to Bree's Secondary 3 A Maths Singapore question.
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need to solve quadratic equation twice.
be aware that squaring both sides may result in extraneous solutions which may not satisfy the original equation, so it is necessary to test each of the answers obtained.
be aware that squaring both sides may result in extraneous solutions which may not satisfy the original equation, so it is necessary to test each of the answers obtained.
Date Posted:
2 years ago
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