9. Factorise : 2a6 – 128
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Answer:
Since both terms are perfect cubes, factor using the difference of cubes formula
Step-by-step explanation:
a3−b3=(a−b)(a2+ab+b2)
where
a=a2
and
b=4.2
(a+2)(a−2)
(a2+2a+4)(a2−2a+4)
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