Answer:
Step-by-step explanation:
x²-5x=12
x²-5x+(\frac{-5}{2})²=12+(frac{-5}{2})²
You can just add 1 every time, its just the fact that we dont know the wording of some things like i dont know what the correct wording to 6,000,000,000,000,000,000,000,000,000 is all i know is that its a number
$325
-5 x -12
