Eugene See's answer to Jolyn Tan's Secondary 3 A Maths question.
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Since the highest power of x is 4, we can expect to have four roots for x.
For the first 2 roots, we have to use the trial-and-error method. Upon finding the 2 roots, we can use the long division or compare coefficient method to further factorise the equation into simpler terms to solve for the roots.
The example I shown is the compare coefficient method. For learning, you can try the long division method :)
For the first 2 roots, we have to use the trial-and-error method. Upon finding the 2 roots, we can use the long division or compare coefficient method to further factorise the equation into simpler terms to solve for the roots.
The example I shown is the compare coefficient method. For learning, you can try the long division method :)
Date Posted:
7 years ago
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