Factorise ....the following
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Answer:
(3a - 1)(3a - 1/3a -4)
Step-by-step explanation:
=9a^2 + 1/9a^2 - 2 - 12a + 4/3a
=(3a - 1/3a)^2 - 4(3a - 1/3a)
=(3a - 1/3a)(3a - 1/3a -4)
Formula used
(a - b)^2 = a^2 - 2ab + b^2
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