Respuesta :

altavistard
the expression xy-2, when x=3 and y= -4, becomes    (3)(-4)-2, or -14 (answer)

the expresion 3x^2*y - 4 becomes 3(3)^2*(-4) - 4, or 27(-4) - 4, or -108 - 4 = -112 (answer)

Leave Timmy out of this, since it seems he didn't really do anything.    ;)

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