Question

no. 4 pleaseee I want it urgently​

Answer 1

Answer:

3x - 4y = 16 and xy= 4

Find. 9x² + 16y² = (3x)² + (4y)²

Squaring (3x - 4y = 16)

9x² - 24xy + 16y² = 256

9x² + 16y² = 256 - 24xy Ans.

Hope this Helps