Solve 9x-7i^3(3x-7u)

Evaluate

9 x - 7 i^{3} (3 x - 7 u)

Evaluate the power

More Steps

9 x - 7 (- i) (3 x - 7 u)

Multiply the first two terms

9 x - (- 7 i (3 x - 7 u))

If a negative sign or a subtraction symbol appears outside parentheses, remove the parentheses and change the sign of every term within the parentheses

9 x + 7 i (3 x - 7 u)

Expand the expression

More Steps

9 x + 21 i x - 49 i u

Solution

(9 + 21 i) x - 49 i u

Simplify the expression