en

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

simplify (-2i)(2i)

Solution

simplify

(- 2 i) (2 i)

Solution

4

Solution steps

(- 2 i) (2 i)

Apply rule:

(- a) = - a

(- 2 i) = - 2 i

= - 2 i 2 i

Multiply the numbers:

- 2 \cdot 2 = - 4

= - 4 ii

Apply exponent rule:

aa = a^{2}

ii = i^{2}

= - 4 i^{2}

Apply imaginary number rule:

i^{2} = - 1

= - 4 (- 1)

Multiply the numbers:

- 4 (- 1) = 4

= 4

Popular Examples

simplify 5/2 \times (-4)simplify

\frac{5}{2} \times (- 4)

2 \frac{2}{3} \div 16

factor+4n^{12}-32n^7+48n^2 factor

+ 4 n^{12} - 32 n^{7} + 48 n^{2}

simplify (2pi)/3-pi/2 simplify

\frac{2 π}{3} - \frac{π}{2}

simplify-4\times 2/3 simplify

- 4 \times \frac{2}{3}

Frequently Asked Questions (FAQ)

What is (-2i)(2i) ?
The solution to (-2i)(2i) is 4