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Mathematics

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ClassesBb Cordova High Scho...i-ReadyIP Student and Parent...CITSSCCLL17 iEvaluate 3x2 - 9 when x= -2.

Answer :

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3x^2 - 9 x = -2

Substitution

3(-2)^2 - 9

Expanding

3(4) - 9

Simplify

12 - 9

Result

3

The value is 3

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