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

asked Sep 2, 2021 120k views

1 vote

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

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4 votes

Answer:

i did it

Explanation:

Kentzo answered Sep 5, 2021

3.3k points

4 votes

Answer:

8x^2+19x+3

Explanation:

$3x^2+7x+3+5x^2+12x=\\3x^2+5x^2+7x+12x+3=\\8x^2+7x+12x+3=\\8x^2+19x+3$

Dan Cancro answered Sep 6, 2021

3.9k points

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