Question

please show me how to solve this

Answer 1

first cross multiply them
$11a {}^{2} b {}^{2} + 27bdac = 11a {}^{2} b {}^{2} + 27acbd \\ 11a {}^{2} b {}^{2} - 11a {}^{2} b {}^{2} = 27acbd - 27bdac \\ 0 = 0$
answer is 0