EXPLANATION
Given the expression 2y(x-y) +12=5x , plugging in x=3 into the expression,
2y(3-y) + 12 = 5*3
6y -2y^2 + 12 = 15
Rearranging terms:

Now, we need to apply the quadratic equation:




Multiplying terms:
![y_{1,2}=\frac{-6\pm\sqrt[]{36-24}}{-4}](https://tex.z-dn.net/?f=y_%7B1%2C2%7D%3D%5Cfrac%7B-6%5Cpm%5Csqrt%5B%5D%7B36-24%7D%7D%7B-4%7D)
Subtracting numbers:
![y_{1,2}=\frac{-6\pm\sqrt[]{12}}{-4}](https://tex.z-dn.net/?f=y_%7B1%2C2%7D%3D%5Cfrac%7B-6%5Cpm%5Csqrt%5B%5D%7B12%7D%7D%7B-4%7D)
Simplifying:

Answer:
The third equation is your answer.
Step-by-step explanation:
7/8 x1/4=?
Answer:
48 cents
Step-by-step explanation:
Angle CGA supplementary angles add up to 180°