Christyhanes3764
11.04.2020 •
Mathematics
Like charges repel and I like charges attract Coulomb’s law states that the force F of attraction or repulsion between two charges a1 and a2 is given by f=kq1q2/r^2
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Ответ:
We can remove the parentheses:
7a + 9 + 4a - 7
Now simplify!
7a + 4a + 9 - 7
11a + 2