Ok, make sure you put the powers correctly. I know what you mean but someone else may not. So it's step 2. This is because the 4 doesn't mean add a digit.
Answer:
25x^2 - 16y^2 - 400 = 0
Step-by-step explanation:
2800 ÷ 400
Cross out 2 zeros from both numbers, then you have 28 ÷ 4 = 7
Answer:
-5c + 15d - 5
Step-by-step explanation:
1. Distribute the -5 from outside the paranthesis to the inside.
2. Keep in mind the negative signs when you're distributing.
