Answer:
225/4
Step-by-step explanation:
x²– 15x – 23 = 0
To complete the square
We take to coefficient of the x term
-15
divide by 2
-15/2
Square it
Add it to each term
The answer is D I just took it on edg
<(￣3￣)> the cancel thingy wasn't needed until it's mathematics.
