When the solution of x2 + 9x - 9 is expressed as 9&
2
what is the value of r?
X
-btvb2 - 4ac
2a
117
O 54
045
09

answer

r = b²-4ac

= 81 + 36

= 117

f(2x−x2)=−3x2+6x−1

step-by-step explanation:

set up the composite function and evaluate.

f(2x−x2)=−3x2+6x−1

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i hope this answer you! if you have any further questions or concerns, feel free to ask! : )

step-by-step explanation:

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