odetteroal499
odetteroal499 odetteroal499
  • 30-10-2018
  • Mathematics
contestada

I need help with math, I have no idea what I'm doing

I need help with math I have no idea what Im doing class=

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phonce
phonce phonce
  • 30-10-2018
a. (x+3)(4x+5)
(multiply x with 4x+5 then multiply 3 with 4x+5)
=4x^2+5x+12x+15
=4x^2+17x+15
b,c, and d are similar
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