Hassanc25 Hassanc25
  • 28-03-2015
  • Mathematics
Answered

Lauren says two expression 3x+4(2x+5) and 6x+5x+5 are equivalent

Answer :

Аноним Аноним
  • 28-03-2015
[tex]\#1\\3x+4(2x+5)=3x+4(2x)+4(5)=3x+8x+20=11x+20\\\\\#2\\6x+5x+5=11x+5\\\\Answer:\boxed{not\ equivalent}[/tex]
Answer Link
SoapyMcTavish
SoapyMcTavish SoapyMcTavish
  • 28-03-2015
3x+4(2x+5) = 6x + 5x + 5
3x + 8x + 20 = 6x + 5x + 5
11x + 20 = 11x + 5 
11x - 11x = 5 - 20
0 = -15
Impossible
So Lauren is wrong. this 2 expressions are not equivalent
Answer Link

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