Question

if the determinants of 3x2 +2x +a =0 is double the determinants of x2 -4x +2=0, then find the value of a.

Answer 1

Answer:

Step-by-step explanation:

Determinant of 3x²+2x+a= 4-4(a)(3)

Determinant of x²-4x+2=16-4(2)(1)=16-8=8

According to the question,

4-12a=8(2)

12a=4-16=-12

so,

a=-1