wawamohd wawamohd

11-06-2018
Mathematics

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factorise 16j²-8jk+k²

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altavistard altavistard

11-06-2018

Note that 16j^2 = (4j)^2. Thus, we have

(4j)^2 - 8jk + k^2

and selecting the binomial (4j - k) as a possible factor would be a logical choice.

Check: Does (4j - k)(4j - k) = 16j²-8jk+k²? YES

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