Question

find thr value of discriminat?
$3x ^{2} + 2x - 1 = 0$
​

Answer 1

Given equation is,

$\longmapsto\tt{3x ²+2x−1=0}$

We know,

$\longmapsto\tt{D=b 2−4c }$

$\longmapsto\tt{a=3,b=2,c=−1 D=2}$

$\longmapsto\tt{2−4×3×(−1)}$

$\longmapsto\tt{D=4+12}$

$\longmapsto\tt{∴D=16}$