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18-03-2021
Mathematics

contestada

if x equals 3 what is 7x to the second power+ 2x

Respuesta :

wergompol23869 wergompol23869

18-03-2021

Answer:

447

Step-by-step explanation:

7x = 21

2x = 6

21^2+6

441 + 6

447

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