tashaunwatt tashaunwatt
  • 01-12-2020
  • Mathematics
contestada

Evaluate 3x^2 – 2xy - 4y^2

when x = 2 and y = - 3.

A. 12
B. -36
C. -12
D. 36

Respuesta :

mesiidor
mesiidor mesiidor
  • 02-12-2020

 Evaluate for x=2,y=−3

3(22)−(2)(2)(−3)−4(−3)2

3(22)−(2)(2)(−3)−4(−3)2

= C. −12

 

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