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Popular >

simplify (9+3i)(9-3i)

Solution

simplify

(9 + 3 i) (9 - 3 i)

Solution

90

Solution steps

(9 + 3 i) (9 - 3 i)

Apply complex arithmetic rule:

(a + bi) (a - bi) = a^{2} + b^{2}

= 9^{2} + 3^{2}

9^{2} + 3^{2} = 90

= 90

Popular Examples

3x+2+5(x-1)=8x+17

3 x + 2 + 5 (x - 1) = 8 x + 17

3/5 x+2/5-3/10 = 1/3-1/15+1/6 x

\frac{3}{5} x + \frac{2}{5} - \frac{3}{10} = \frac{1}{3} - \frac{1}{15} + \frac{1}{6} x

simplify 3/2*3/2 simplify

\frac{3}{2} \cdot \frac{3}{2}

simplify-3/2-3 simplify

- \frac{3}{2} - 3

2 (8 - x) = 3 x

Frequently Asked Questions (FAQ)

What is (9+3i)(9-3i) ?
The solution to (9+3i)(9-3i) is 90