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satela [25.4K]
3 years ago
8

Okay, I’m having a hard time answering these problems. My math teacher explained it but I still just don’t understand. Can any o

f you out there help me? ASAP.

Mathematics
1 answer:
Tju [1.3M]3 years ago
6 0
You just need to match the terms that are the same. Let's look at number one.
2x^2 + 4x +1 + 3x^2 +6x +5 the matching parts:
the 2x^2 and the 3x^2 go together. That means you can combine them here they are positive so you add them.
The 4x and the 6x go together they both only have an x with them. They are both positive so you can add them together.
Last you have a 1 and a 5. These are matching so you can combine them too. They are both positive too so just add them together.
So your final answer would be 5x^2 + 10x + 6. Does that make sense?

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see explanation

Step-by-step explanation:

I will begin with part two, first.

The equation of a circle in standard form is

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