Question

3x + 4y = 7
and xy=-5.4
find 9x^2+16y^2​

Answer 1

Answer:

25

Step-by-step explanation:

3X+4Y=7

take x=1 and y=1

point (1,1)

9x^2 +16y^2

=9^1*1+16^1*1

9+16

25

Hope it helps, same prob can be done using different points that give 7 as result. I hope its clear