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How do you factorise 9y^2 - 64

How do you factorise 9y^2 - 64
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5 votes
How do you factorise 9y^2 - 64

asked
User Dorvak
by
7.8k points

1 Answer

1 vote
Simplifying 9y2 + -64
Reorder the terms: -64 + 9y2

Factor a difference between two squares. (8 + 3y)(-8 + 3y)

Final result:
(8 + 3y)(-8 + 3y)
answered
User TrevJonez
by
8.4k points
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