Find the sum of squares of roots of the equation 2x4-8x3+6x2-3=0

Find the sum of squares of roots of the equation $2 x^{4} - 8 x^{3} + 6 x^{2} - 3 = 0$

Matching exercise

Match the items on the right to the items on the left.

Step - 1

Step - 2

Step - 3