What is 1+(2i)(-2+i) ?

The solution to 1+(2i)(-2+i) is -1-4i

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

simplify 1+(2i)(-2+i)

simplify

1 + (2 i) (- 2 + i)

- 1 - 4 i

Solution steps

1 + (2 i) (- 2 + i)

Expand

(2 i) (- 2 + i) : - 4 i - 2

= 1 - 4 i - 2

Group like terms

= - 4 i + 1 - 2

Subtract the numbers:

1 - 2 = - 1

= - 4 i - 1

Rewrite in standard complex form:

- 1 - 4 i

= - 1 - 4 i

\frac{3.5}{2 - \frac{4}{9}}

- v (v + 8)

- \frac{5}{18} \cdot (- \frac{54}{5})

25 x^{3} - 15 x^{2} - 10 x

\frac{11}{12} - \frac{6}{25}