Question

The model represents a polynomial of the form ax2 + bx + c. Which equation is represented by the model?

Answer 1

Consider the given table.

• The first row represents first term (first brackets):

                                +x+x+x-1=3x-1

• The first column represents second term (second brackets):

                                +x-1=x-1

• The product of (3x-1) and (x-1) is equal to the sum of all remaining terms in this table:

                               +x²+x²+x²-x-x-x-x+1=3x²-4x+1.

Therefore, 3x²-4x+1=(3x-1)(x-1).

Answer: correct choice is C.

Answer 2

the answer is C because if you do 3x*x that= 3x2 then 3x*-1= -3x then you do the other side and that is -1*x= -1x and -1*-1= +1 so your answer comes out as 3x^2- 4x+1