Solve the following system. 4x2 + 9y2 =72 x2 - y2 = 5 the solutions areand () (remember to include the commas) there has to be 4 solutions all ordered pairs

 The required solutions are

Step-by-step explanation:  We are given to solve the following system of equations:

Let us consider that

So, equations (i) and (ii) becomes

Multiplying equation (iv) by 4 and then subtracting from equation (iii), we get

From equation (iv), we get

Therefore,

Thus, the required solutions are