Question

find the discriminant 2x+10x+21=0

Answer 1

I hope my answer is right,please mark as brainlist

Answer 2

in 2x+10x+21
a is 2, b is 10, c is 21
so discriminant is
${b}^{2} - 4ac \\ {10}^{2} - 4(2)(21) \\ 100 - 168 \\ - 68$
so the discriminant is -68