
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.
Answer:
Yes
Step-by-step explanation:
Because they are reflecting over a x intercept
Answer:
A. 18 divided by 2/9
Step-by-step explanation:
To determine the number of boos that will fit into a box that is 18 inches long, we divide the length of the box by the length of the books
18 inches divided by 2/9 inches per book
This tells us how many books
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18 * 9/2
81 books
The answer is 10
Explanation: First you cross-multiply to get 2x=20 and then divide by 2 to get x=10
1/9
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Hope this helps you