D & C are the correct answers.This is because of the Distributive Property.
y+y+y +3z = 3y + 3z.
3(y+z) also gives you 3y + 3z.
C is correct because everything adds up to 3y +3z:
2y+2z+y+z = 3y +3z
Answer:
median
Step-by-step explanation:
it finds the center number and you can find it by listing all the numbers least to greatest and then finding the middle of the list
X^2+9x+9x+81
x^2+18x+81
for factoring it
Answer:
-4 + 32i
Step-by-step explanation:
use the distributive property to multiply
remember: i^2 = 1
(4 - 6i)(-4 + 2i)
-16 + 8i + 24i - 12i^2
-16 + 32i - 12(- 1)
-16 + 32i +12
-4 + 32i
