Question

if 9x^2+25y^2=181 and xy= -6.Find the value of 3x+5y​

Answer 1

Answer:

1

Step-by-step explanation:

(3x+5y)^2-30xy=181

(3x+5y)^2-30(-6)=181

(3x+5y)^2+180=181

(3x+5y)^2=181-180

(3x+5y)^2=1

taking square roots

(3x+5y)=1

Answer 2

(3x+5y)^2
181+30xy
181+30*(-6)=1