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Which polynomial represents the sum below?
3x? +7x+3
5x2 + 12x
+
O A. 15x2 + 19x+ 3
B. 8x2 + 19x+ 3
C. 8x2 + 84x + 3
O D. 15x2 + 84x + 3

Which polynomial represents the sum below 3x 7x3 5x2 12x O A 15x2 19x 3 B 8x2 19x 3 C 8x2 84x 3 O D 15x2 84x 3 class=

Respuesta :

Answer:

[tex]8x^2+19x+3[/tex]

Step-by-step explanation:

[tex]3x^2+7x+3+5x^2+12x=\\3x^2+5x^2+7x+12x+3=\\8x^2+7x+12x+3=\\8x^2+19x+3[/tex]

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