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emilylittle2442
24.05.2021 •
Mathematics
Factor the expression below.
x² - 64
A. (x+3)(x-8)
B. (x-8)(x-8)
C. (x - 16)(x - 4)
D. (x+16)(x-2)
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Ответ:
(x + 8) (x - 8)
Step-by-step explanation:
To factorise the expression follow the steps:
Think the factorising means you want like:-
( x + _ ) ( x + _ )
Now, add the numbers to get 0 & multiple together to get -64
-64 = 8 x -8
8 + -8 = 0
Now fill the numbers in the factorising mean which will give you,
( x + _ ) ( x + _ ) --> ( x + 8 ) ( x - 8 )
Therefore, the answer will be: ( x + 8 ) ( x - 8 )
I hope this will help you :)
Ответ:
2x+8+4x-16
=6x-8