factoring special products

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x squared minus 16x plus 65 = 0

May 9th, 2015

x² - 16x + 65 = 0 

delta = 256 - 260 = -4

x1= (16  - i2 )/2 = 8 - i 

x2=  8 + i 

(x - x1)(x - x2)=0

Good luck 

May 9th, 2015

can you maybe explain to me how you got that in words? like the "8+i" part I don't understand

May 9th, 2015

8 plus i  : is a number complex on the set C .

if you don't know it just read the course about number complexe 

May 9th, 2015

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May 9th, 2015
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