Question

If 3x - 7y = 10 and xy = -1, Find the Value of 9x^2 + 4y^2

Answer 1

Answer:

13 or 49.73

Step-by-step explanation:

using equations if we find x and y we get

(x,y) =(1,-1) or (7/3,-3/7)

so we get 2 answers . pls refer the attached paper fpr complete solution