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when asked to factor the trinomial 9x^2+12x+4, a student gives the answer (3x-2)(3x-2). what is one thing wrong with this answer?

A. There is nothing wrong with the answer
B. 3 is also a factor of this trinomial
C. The factors are not simplified
D. The minus signs should be plus signs

Respuesta :

Answer: Option 'D' is correct.

Explanation:

Since we have given that

[tex]9x^2+12x+4=0[/tex]

When we split the middle term, we get

[tex]9x^2+12x+4=0\\\\9x^2+6x+6x+4=0\\\\3x(3x+2)+2(3x+2)=0\\\\(3x+2)(3x+2)=0[/tex]

Since that student gives the answer i.e. (3x+2)(3x+2)

So, Option 'D' is correct, which says that the minus signs should be plus signs.

Hence, Option 'D' is correct.

kylemwhite16

Answer:

D is correct

Step-by-step explanation:

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