Which algebraic expression is a polynomial with a degree of 2?

Choose the number sentence that shows the identity property of addition. a. 122 = 61 + 61 b. 62 = 1 + 61 c. 61 = 0 + 61

What is the best way to answer questions with a x expression in the question. for example 3x + 10x=?

What are the solutions of the system? solve by graphing. y = -x^2 - 3x + 2 y = -2x + 2