Making rational expressions simple — task. Maths CBSE Live product, Class 9 (2026-27).

Simplify the following rational expression assuming that the expressions in the denominators are not equal to zero:

\frac{(x^{2} + 2 x -15) (x^{2} -14 x + 45)}{(x^{2} -12 x + 27) (x^{2} - 25)}

Ans:

\frac{((x + i) (x - i)) \times ((x - i) (x -9))}{((x - i) (x -9)) \times ((x - i) (x + i))} = i

Did you find an error?

10. Making rational expressions simple