jenn2fur005
jenn2fur005 jenn2fur005
  • 25-02-2019
  • Mathematics
contestada

no one is helping me please help me​

no one is helping me please help me class=

Respuesta :

imrad imrad
  • 25-02-2019
First, solve the first part.
(3x-4)²=
=9x²-24x+16

...

Second, 9x²-24x+16-4x-3x²=
=6x²-28x+16

...

Therefore, the answer is #3
Answer Link
2200243 2200243
  • 05-07-2022

Answer:

(1) [tex]-12x^{2} +28x-16[/tex]

Step-by-step explanation:

[tex](3x-4)^{2} =3x(3x-4)-4(3x-4)\\=9x^{2} -12x-12x+16\\=9x^{2} -24x+16\\4x -3x^{2} -(9x^{2} -24x+16)\\\\4x-3x^{2} -9x^{2} +24x-16\\\\ -3x^{2} -9x^{2} +4x+24x-16\\-12x^{2} +28x-16[/tex]

Answer Link

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