Sheryl Teo's answer to Jy's Secondary 3 A Maths Singapore question.
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This question is a rather commonly asked challenging question.
For this question, first use the concept of logarithms to express one equation in terms of x and y (or the variables given).
Next, use substitution to express the other equation in terms of one variable only. At this point, the equation should be able to be expressed as a quadratic equation. You can then introduce a third variable (in this case, a) to solve the quadratic equation and solve for x followed by y.
For this question, first use the concept of logarithms to express one equation in terms of x and y (or the variables given).
Next, use substitution to express the other equation in terms of one variable only. At this point, the equation should be able to be expressed as a quadratic equation. You can then introduce a third variable (in this case, a) to solve the quadratic equation and solve for x followed by y.
Date Posted:
1 month ago
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