realtimefix247 realtimefix247
  • 17-09-2017
  • Mathematics
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The length of a rectangle is represented by the expression 2+3x and the width is represented by the expression x‒4. Which expression represents the area of the rectangle? A.) 4x‒2 B.) 3x2‒14x+8 C.) 3x2‒10x‒8 D.) ‒8x‒4

Respuesta :

17092017
17092017 17092017
  • 17-09-2017
rectangle area = long edge × short edge

= (2+3x).(x-4)
= 2x-8+3x²-12x
= 3x²-8-10x
= 3x²-10x-8
C chic
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