titi33 titi33
  • 23-08-2017
  • Mathematics
contestada

a rectangle has sides 2x + 3 and x - 4. what is the perimeter of the rectangle

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Travis011
Travis011 Travis011
  • 23-08-2017
Write 2x+3(to the power of 2)+x-4(to the power of 2). Then do the equations and you should get 4x+9+2x+16. Combine like terms and that's your answer. I know it might be weird that it's not like 72 or something, but it's math haha. Your answer should be 6x+25! Make sure you understand this before just writing all of this down. Also, don't be afraid to ask your teacher. They are there to help!
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