anamhasnain971 anamhasnain971
  • 11-01-2020
  • Mathematics
contestada

find the discriminant of (x+5)^2 = 2( 5x-3)

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md2266123
md2266123 md2266123
  • 11-01-2020

Step-by-step explanation:

(x+5)^2 = 2( 5x-3)

x^2+25=10x-6

x^2-10x+25+6= 0

x^2-10x+31=0

a=1, b

Answer Link
09pqr4sT
09pqr4sT 09pqr4sT
  • 25-07-2020

Answer:

[tex]\boxed{-124}[/tex]

Step-by-step explanation:

[tex](x+5)^2 = 2( 5x-3)\\x^2+10x+25=10x-6\\x^2+0x+31=0[/tex]

[tex]ax^2 +bx +c=0[/tex]

Formula for the discriminant:

[tex]D=b^2-4ac[/tex]

[tex]b=0\\a=1\\c=31[/tex]

Plug in the values.

[tex]D=0^2-4(1)(31)[/tex]

[tex]D=-124[/tex]

Answer Link

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