leah1386
08.09.2021 •
Mathematics
- 5 + 3(b + 9b - 5) + 9b ^2
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Ответ:
This looks like a quadratic root problem on first glance, lets simplify it.
Distribute the 3.
-5 + 3b + 27b - 15 + 9b^2
Simplify like terms of b.
-5 + 30b - 15 + 9b^2
Simplify constants
30b - 20 + 9b^2
Rearrange it so its easier to tell
9b^2 + 30b - 20
Now solve for the roots,
which gets you x = .5694 & x= -3.902
Ответ:
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Step-by-step explanation: