valerie8306 valerie8306
  • 04-05-2018
  • Mathematics
contestada

Factor the trinomial below.

9x2 + 6x + 1

A. (3x + 1)(3x – 1)
B. (9x + 1)(x – 1)
C. (9x + 1)(x + 1)
D. (3x + 1)(3x + 1)

Respuesta :

Skøll1922
Skøll1922 Skøll1922
  • 04-05-2018
The answer is D
9x²+6x+1=
=(3x+1)²=
=(3x+1)(3x+1)
Answer Link
ummuabdallah ummuabdallah
  • 24-01-2020

Answer: D. (3x + 1)(3x+1)

Step-by-step explanation:

9x² + 6x + 1

find two factor of 9 such that its product gives 9 and its sum gives 6 (3 and 3, 3×3 = 9 , also 3+ 3=6)

we are going to replace 6x by 3x + 3x

9x² + 6x + 1

9x² + 3x +3x + 1

3x(3x + 1) + 1(3x+ 1)

(3x + 1)(3x+1)

Answer Link

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