I don't know how to solve these questions please help me and demonstrate please!

Question

1. Which of the following equations is a polynomial identity?

a. 

b. 

c. 

d. 

 

2. Which expression is not equivalent to ?

a. 

b. 

c. 

d. 

 

Prove, algebraically, that the following equations are polynomial identities. Show all of your work and explain each step. Use the Rubric as a reference for what is expected for each problem. 

3. 

 

4. 

Answer 1

1. 6x² + x + 2 = (6x - 2)(x + 4)

6x² + x + 2 = 6x(x) + 6x(4) - 2(x) - 2(4)

6x² + x + 2 = 6x² + 24x - 2x - 8

6x² + x + 2 = 6x² + 22x - 8

Is that true? No, so the answer is not A.