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secondary 4 | A Maths
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Date Posted: 2 months ago
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Eric Nicholas K
Eric Nicholas K's answer
1678 answers (Tutor Details)
The 'b' can be replaced with 'x' if that makes things look more familiar.

If the degree (power of x, or in this case, b) of the first term is lower than the degree (power of x, or b in this case) of the second term, your expansion will appear in ascending powers.