Respuesta :

Just plugin -3 where the x is in [tex] 2x^2 - x [/tex]
[tex]f(-3) = 2x^2 - x [/tex]
[tex]f(-3) = 2(-3)^2 - (-3) [/tex]
[tex]f(-3) = 2(9) - (-3) [/tex]
[tex]f(-3)= 18 - (-3) [/tex]
[tex]f(-3) = 21 [/tex]
[tex]21 [/tex] <------The answer
21 is the answer
thanks (:

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