Question

Identify the type of each of the following quadratic forms : $2x_{1}^{2}+2x_{2}^{2}+2x_{3}^{2}+2x_{1}x_{2}$ and $2x_{1}x_{2}+2x_{2}x_{3}+2x_{1}x_{3}$.

Answer 1

2(a+b+c)

$^{2}$

Answer 2

Answer:

2(a+b+c)

Step-by-step explanation: