anonymous
  • anonymous
Please and thank you :)
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
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anonymous
  • anonymous
\[x^2+7x+12=(x+3)(x+4)\] can you go on from this?
anonymous
  • anonymous
Uhhhh 0.o

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anonymous
  • anonymous
Maybe a little more please lol
anonymous
  • anonymous
I just don't understand, really. Do I substitute or what?
anonymous
  • anonymous
do you understand why x^2+7x+12=(x+3)(x+4)?
anonymous
  • anonymous
No.
anonymous
  • anonymous
3 an 4 are roots of polynomial and you can always write polynomial as \[\left( x-x _{1} \right)\left( x-x _{2} \right)\] where x1 and x2 are roots
anonymous
  • anonymous
do you understend this?
anonymous
  • anonymous
Yes
anonymous
  • anonymous
area of rectangle is (width)*(height) from your drawing width is x+b and height is x+a so area = (x+a)(x+b)
anonymous
  • anonymous
Ohh ok
anonymous
  • anonymous
so this means that answar is?
anonymous
  • anonymous
IDK! Erggggg someone told me a is 2 and b is 6 but it just don't seem right to me
anonymous
  • anonymous
area =(x+3)(x+4)=(x+a)(x+b) this means that a and b are?
anonymous
  • anonymous
3 and 4
anonymous
  • anonymous
yes
anonymous
  • anonymous
is there any part that you are confused about?
anonymous
  • anonymous
No. Now that I see it I feel hella dumb but I think I understand this now. Thank you

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