Question

1. Add 4x2y and 6x2y.12z2+10x2y−2z

Simplify 4x2y + 12z2 + 6x2y – 2z.


A. 10x2y + 10z2


B. 10x2y + 12z2 – 2z


C. 10x2y + 14z2


D. 20x2yz2

Answer 1

I think the answer is b

Answer 2

B. 10x2y + 12z2 – 2z

Explanation:

Divide all the terms by 2:

2xy + 12z + 3xy - z

10x2y + 12z2 – 2z

combine the like terms