Albert's answer to help's Secondary 3 A Maths Singapore question.
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So the second term of the first expression is always subtracted by the first term of the second expression.
You just simply left with the first term of the first expression minus the last term of the last expression.
You just simply left with the first term of the first expression minus the last term of the last expression.
Date Posted:
3 years ago
thank you :)) i understand liao
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