yitzel37 yitzel37

12-09-2020
Mathematics

contestada

(D2+6d+9)+(d3-6d+9)

Respuesta :

alenaictz alenaictz

12-09-2020

You can’t add d2 or d3 so ignore it for now u will subtract -6d from +6d to get 0 then add 9+9
Answer:
d3+ d2 + 18

D3 has to be in front because it has a larger exponent

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