Question

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

Answer 1

3x^2 - 9 x = -2

Substitution

3(-2)^2 - 9

Expanding

3(4) - 9

Simplify

12 - 9

Result

3

The value is 3