What is 3(3+2i)-2(-2-5i) ?

The solution to 3(3+2i)-2(-2-5i) is 13+16i

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

simplify 3(3+2i)-2(-2-5i)

simplify

3 (3 + 2 i) - 2 (- 2 - 5 i)

13 + 16 i

Solution steps

3 (3 + 2 i) - 2 (- 2 - 5 i)

Expand

3 (3 + 2 i) : 9 + 6 i

= 9 + 6 i - 2 (- 2 - 5 i)

Expand

- 2 (- 2 - 5 i) : 4 + 10 i

= 9 + 6 i + 4 + 10 i

Group like terms

= 6 i + 10 i + 9 + 4

Add similar elements:

6 i + 10 i = 16 i

= 16 i + 9 + 4

Add the numbers:

9 + 4 = 13

= 16 i + 13

Rewrite in standard complex form:

13 + 16 i

= 13 + 16 i

16 d^{3} f - 64 d^{2} f + 48 df

\frac{1}{\frac{1}{2} + \frac{1}{5}}

\frac{1.2 \cdot 1 0 ^{25}}{6.02 \cdot 1 0 ^{23}}

4 x^{2} - 20 x + 16 = 0

2 x^{(4)} - 4 x^{(2)} - 16 \leq 0