Question

$\sqrt{2x { }^{2} } - 5x - \sqrt{2 } = 0 \: find \: the \: value \: ofdiscriminant$
find the value of discriminant​

Answer 1

D = 17.

Step-by-step explanation:

√2x² - 5x - √2 = 0.

Use discriminant formula

D = b² - 4ac.

a = √2 , b = -5 , c = -√2.

D = -5² - 4×√2×-√2 = 0.

D = 25 - 4× (√2)² = 0.

D = 25 - 4×2 = 0.

D = 25 - 8 = 0.

D = 17.