Question

find the value of discrimination for
$2 { x}^{2} - 2 \sqrt{2} x + 1 = 0$
​

Answer 1

formula:-

$\huge \fbox \blue{D=b²-4ac}$

here,

• a = 2
• b = $2\sqrt{2}$

• c = 1

solution:-

⇒ D =  ($2\sqrt{2}$)²-4(2)(1)

⇒ D =  8-4(2)

⇒ D = 8-8 = 0

hence, the discriminant is 0.