Question

if 3x-2y=10 & xy=-1,find the value of 9x²+49y² fast pls​

Answer 1

Answer:

88

Step-by-step explanation:

3x-2y=10

Square both sides

(3x-2y=10 )² = 10²

9x²+4y²-12xy = 100

9x²+4y² +12  = 100

9x²+4y² = 100-12

9x²+4y² = 88