josenunez57pa5xyx josenunez57pa5xyx
  • 11-06-2018
  • Mathematics
contestada

Timothy evaluated the expression using x = 3
and y = –4.

xy-2
3x2y−4

Respuesta :

altavistard
altavistard altavistard
  • 17-06-2018
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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