Mxiin7
contestada

Can someone explain letter c?! From where did 13 come from there’s no 13 in the question..

Can someone explain letter c From where did 13 come from theres no 13 in the question class=

Respuesta :

Paounn

Answer:

Seems correct to me. I color coded the various terms.

Ver imagen Paounn
Selena328

Step-by-step explanation:

[13x³ came by adding 9x³ and 4x³]

  • 12x²+8x-5x+9x³+2x²+4x³
  • (9x³+4x³)+(12x²+2x²)+(8x-5x)
  • 13x³+14x²+3x

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