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22-03-2021
Mathematics

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Complete the square for 3x2 - 12x = 9.
O A. (3x - 2)2 = 20
O B. (3x - 2)2 = 13
O C. (x + 2)2 = 7
OD. (x - 2)2 = 7

Respuesta :

Аноним Аноним

22-03-2021

Answer:

D

Step-by-step explanation:

[tex]3 {x}^{2} - 12x = 9[/tex]

[tex] {x}^{2} - 4x = 3[/tex]

[tex]( \frac{ - 4}{2} ) {}^{2} [/tex]

[tex] {x}^{2} - 4x + 4 = 7[/tex]

[tex](x - 2) {}^{2} = 7[/tex]

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