factorise x^6 - 7 x^3 - 8
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These are your answers.Please read the attached images.
We use the formulas -
(a³ + b³) = (a+b) (a²-b²+ab)
And,
(a³ - b³) = (a-b) (a²+b²+ab)
Hope it'll help.. :-D
We use the formulas -
(a³ + b³) = (a+b) (a²-b²+ab)
And,
(a³ - b³) = (a-b) (a²+b²+ab)
Hope it'll help.. :-D
Attachments:
ramij100:
from which book you clicked the photos???
Ah! Its my school's maths book. ;-)
Was in a hurry, so clicked the photos, otherwise should have had explained it nicely.
can you please say the name of the book????
Secondary school mathematics for class 9 by R.S. Agrawal
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