lanaiii lanaiii

20-02-2019
Mathematics

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Factor Completely: x2 - 81
A.(x-9)(x+9)
B.(x+9)(x+9)
C.(x-9)(x-9)
D.(9-x)(9+x)

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april861 april861

20-02-2019

Answer is A

The binomial can be factored using the difference of squares formula a2-b2 = (a+b) (a-b) where a=x and b=9

(X+9) x(x-9)

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safyra2005 safyra2005

21-04-2020

Answer:

the answer is A

Step-by-step explanation:

i just did it on usa testprep

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