Question

9 X square + 25 y square is equal to 181 and x y is equal to minus 6 find the value of 3 X + 5 y​

Answer 1

Answer:

1

Step-by-step explanation:

Given, 9x^2 + 25y^2 = 181

xy = -6

This is in the form of (3x+5y)^2

(3x+5y)^2 =9x^2 + 25y^2 + 30xy

= 181 + 30 (-6)

= 181 -180

= 1

3x+5y = √1 = 1