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3 years ago

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

Mathematics

2 answers:

Dima020 [189]3 years ago

8 0

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

ahrayia [7]3 years ago

6 0

Answer:

$\boxed{-124}$

Step-by-step explanation:

$(x+5)^2 = 2( 5x-3)\\x^2+10x+25=10x-6\\x^2+0x+31=0$

$ax^2 +bx +c=0$

Formula for the discriminant:

$D=b^2-4ac$

$b=0\\a=1\\c=31$

Plug in the values.

$D=0^2-4(1)(31)$

$D=-124$

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