Destinyyyy
  • Destinyyyy
Check my answer..
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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Destinyyyy
  • Destinyyyy
Solve by completeing the square. 4x^2-12x-32=0
Destinyyyy
  • Destinyyyy
Divide the whole thing by 4 x^2-3x=8 x^2-3x+ 9/4= 8+9/4 x^2-3x+9/4= 41/4 (x-9/2)^2= 41/4 square root (x- 9/4)^2= +- Square root 41/4 x-9/4=+- square root 41/square root 4 +9/4 x=9/4+- square root 41/2
Destinyyyy
  • Destinyyyy
@Nnesha

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Destinyyyy
  • Destinyyyy
It says my answers wrong but I dont get how
Nnesha
  • Nnesha
hmm there is a mistake :(
Destinyyyy
  • Destinyyyy
What?? Where??
Nnesha
  • Nnesha
|dw:1440711275980:dw| there should be b/2 in the parentheses not (b/2)^2
Destinyyyy
  • Destinyyyy
So 9/2 not 9/4 ?
Nnesha
  • Nnesha
\(\color{blue}{\text{Originally Posted by}}\) @Destinyyyy Divide the whole thing by 4 x^2-3x=8 x^2-3x+ 9/4= 8+9/4 x^2-3x+9/4= 41/4 (x-9/2)^2= 41/4 square root (x- 9/4)^2= +- Square root 41/4 x-9/4=+- square root 41/square root 4 +9/4 x=9/4+- square root 41/2 \(\color{blue}{\text{End of Quote}}\) so \[(x-\frac{ \color{ReD}{9} }{ 2 })^2 = \frac{ 41 }{ 4 }\] red part isn't right
Nnesha
  • Nnesha
what is b in the equation ?
Destinyyyy
  • Destinyyyy
omg -.- its suppose to be 3/2
Nnesha
  • Nnesha
\(\huge\color{green}{\checkmark}\)
welshfella
  • welshfella
x^2 - 3x - 8 = 0 (x - 1.5)^2 - 2.25 - 8 = 0 (x - 1.5)^2 = 10.25 x - 1.5 = +- sqrt 10.25 x = 1.5 +/- sqrt10.25
Destinyyyy
  • Destinyyyy
Thank you lol
Nnesha
  • Nnesha
great job !!! btw :=)
Destinyyyy
  • Destinyyyy
Thanks :) ... 12 out of 23

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