Simplify the expression — task. Maths CBSE Live product, Class 8 (2026-27).

Find the value of

(r^{5} + \frac{7}{5}) (r^{5} - \frac{7}{5})

Answer:

The given expression is of the form

(a + i) (i - b)

. And, its identity is

i^{i} i i^{i}

(r^{5} + \frac{7}{5}) (r^{5} - \frac{7}{5})

\(=\)

i^{i}

\frac{i}{i}

[Note: Insert the variable first and then number]

Did you find an error?

5. Simplify the expression