Answer:
D
Step-by-step explanation:
Given
(x + 2)² + 5(x + 2) - 6 = 0
Using the substitution u = x + 2 , then the equation can be expressed as
u² + 5u - 6 = 0 → D
Answer: I think the answer is #1
Answer:
D
Step-by-step explanation:
When iron reacts with air and water, it forms Iron (III) oxide, also known as rust, which is reddish-brown.
Answer:
2nd answer. it is because it is
-2
We know that a positive and a negative will end in a negative result. (+) (-) = (-)
