moneygirl700
moneygirl700 moneygirl700
  • 10-02-2020
  • Mathematics
contestada

When asked to factor the trinominal 9x^2+12x+4 a student gives the answer (3x-2)(3x-2) what is one thing wrong with this answer

Respuesta :

sammy3433
sammy3433 sammy3433
  • 10-02-2020

Answer:

Because if you were to distribute it back into the original equation you were given it would distribute back into 9x^2-12x+4. Your signs are wrong. So change it to (3x+2) (3x+2)

Step-by-step explanation: change your signs in your answer you gave to positive. :)

Answer Link
devishri1977
devishri1977 devishri1977
  • 10-02-2020

Answer:

(3x+2)(3x+2)

Step-by-step explanation:

9x^2+12x+4 =9x² + 6x + 6x + 2*2

= 3x ( 3x + 2) + 2(3x+2)

= (3x + 2)(3x+2)

So the sign should be positive

Answer Link

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