Answer:
I think its B
Step-by-step explanation:
Answer:
22x^2 -10xy + 12x
Step-by-step explanation:
To add and subtract polynomials, combine only like terms. When doing it vertically, stack polynomials and line up the same bases and exponents. Once this is done, simply add and subtract the coefficients.
10x^2 + 12xy + 4x
+ 12x^2 -22xy + 8x
_________________
22x^2 -10xy + 12x
Here we added 10 + 12 = 22, 12 + -22 = -10 and 4 + 8 = 12.
Answer:
30
Step-by-step explanation:
DE=10
AE=12
AD=8
So the perimeter is 30
Answer:
b
Step-by-step explanation:
b is the answer i'm sure of it