How does a linear system work u 20 points

Simplify (a/b - b/a) times (a - a^2/a+b) a - a^2/a=b is a mixed number

Anyone know? will mark brainliest if correct

(mc 02.03) what set of reflections and rotations would carry rectangle abcd onto itself? reflect over the y-axis, reflect over the x-axis, rotate 180° rotate 180°, reflect over the x-axis, reflect over the line y=x reflect over the x-axis, rotate 180°, reflect over the x-axis rotate 180, reflect over the y-axis, reflect over the line y=x