pinapunapula
05.07.2019 •
Mathematics
Correct answer only ! what is the completely factored form?
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Ответ:
Its A
Step-by-step explanation:
I think its the first set so I'll expand it:-
(x + 3)(x - (-1 + √3)(x - (-1 - √3))
= (x + 3)( x + 1 - √3)(x + 1 + √3)
= (x + 3)(x^2 + x + √3 + x + 1 + √3 -√3x - √3 - 3)
= (x + 3)( x^2 + 2x - 2)
= x^3 + 2x^2 - 2x + 3x^2 + 6x - 6
= x^3 + 5x^2 + 4x - 6
Ответ: