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alma79
27.06.2019 •
Mathematics
Find the nonpermissible for a in this expression a^2/2a+6
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Ответ:
a≠-3
Step-by-step explanation:
We cannot divide by zero, so the denominator cannot be zero
2a+6≠ 0
Subtract 6 from each side
2a+6-6≠ 0-6
2a ≠-6
Divide each side by 2
2a/2 ≠-6/2
a≠-3
Ответ:
the answer is Multiplication Property of Equality