jarrodpattersojpatt
jarrodpattersojpatt jarrodpattersojpatt
  • 26-04-2017
  • Mathematics
contestada

can i have help Finding the roots of

can i have help Finding the roots of class=

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2711010
2711010 2711010
  • 26-04-2017
x=4+2i√6,4-2i√6 if by 0
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mreijepatmat
mreijepatmat mreijepatmat
  • 26-04-2017
Firstly reduce to the same denominator ==> x²/4 = 8x/4 - 40/4

===> x²= 8x -40===> transpose to the left x² - 8x + 40.
Δ (discriminent) = b²-4ac= 64-4x 1 x 40=- 96===>Δ<0.
There are only complex (or imaginary)  roots which are :
x'= 4+2i√6
x"= 4-2i√6
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