Chia Jun Er, Ashley's answer to Rosie's Secondary 3 E Maths Singapore question.
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Continued where you left off
If you find it difficult to factorise, make the equation such that the coefficient to your x^2 (in this case, k^2) is positive. In the third line, I shifted everything to the other side so that k^2 is positive and is easier to factorise
If you find it difficult to factorise, make the equation such that the coefficient to your x^2 (in this case, k^2) is positive. In the third line, I shifted everything to the other side so that k^2 is positive and is easier to factorise
Date Posted:
1 year ago
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