
Taking 4 out from first two terms, we will get

Now we divide the coefficient of x by 2 and add and subtract the square of the result, we will get

Distributing 4

Cancelling 9

And that's the required standard form.
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Answer:
can you give me more info
Step-by-step explanation:
Answer:
1. Use the distance formula and midpoint formula
2a. Learn the properties of an orthocenter
2b. Write a conjecture and then verify if it's true for acute and right triangles
3. Prove that D is not equidistant from A to C
Step-by-step explanation:
Answer:
the correct answer is c
Step-by-step explanation: