Factorise x² -2x -8
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so the answer is (X+2) (X-4)
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Answer:
− 2 − 8
Step-by-step explanation:
use the sum product method
x² -2x -8
x² + 2x -4x-8
Common factor from the two pairs
2 + 2 − 4 − 8
( + 2 ) − 4 ( + 2 )
Rewrite in factored form
( + 2 ) − 4 ( + 2 )
( − 4 ) ( + 2 )
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