Math, asked by shankariah95853, 1 year ago

roots of xpower2+6x+5=0​

Answers

Answered by anindyaadhikari13
2

Answer:

See this.

Step-by-step explanation:

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Answered by Anonymous
0

Answer:

 {x}^{2}   + 6x + 5 = 0 \\  \\ d =  {b}^{2}   - 4ac \\  \\  \\  \\ ( {6}^{2}  - 4 \times 1 \times 5) \\  \\ =  36 - 20 \\  \\  = 16 \\  \\  \\ x =    \frac{ - b \binom{ + }{ - }  \sqrt{d} }{2a}  \\  \\  =  \frac{ - 6 \binom{ + }{ - } \sqrt{16}  }{2 \times 1}  \\  \\  \\  =  \frac{ - 6 + 4}{2}  =   \frac{ - 2}{2}  =  - 1 \\  \\  \\  \\  =   \frac{ - 6 - 4}{2}  =  \frac{ - 10}{2}  =  - 5

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shortcut..

x^2+6x+5=

x^2+5x+x+5=

x(x+5)+1(x+5)

x=-5,-1

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