Question

How many of each type of zero pairs do you see in your model in the Gizmo?

Answer 1

we have that

x^2 and -x^2 -----> (2+1)=3

x and -x -----> (3-4)=-1

1 and -1 ----> (5-1)=4

3x^2-x+4 -----> the sum of the two polynomials

zero pairs

x^2 and -x^2 -----> 0

x and -x ----> 3 and -3 -----> 1 type

1 and -1 ----> 1 and -1 -----> 1 type