What is 3(4+i)-5(-3+6i) ?

The solution to 3(4+i)-5(-3+6i) is 27-27i

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

simplify 3(4+i)-5(-3+6i)

simplify

3 (4 + i) - 5 (- 3 + 6 i)

27 - 27 i

Solution steps

3 (4 + i) - 5 (- 3 + 6 i)

Expand

3 (4 + i) : 12 + 3 i

= 12 + 3 i - 5 (- 3 + 6 i)

Expand

- 5 (- 3 + 6 i) : 15 - 30 i

= 12 + 3 i + 15 - 30 i

Group like terms

= 3 i - 30 i + 12 + 15

Add similar elements:

3 i - 30 i = - 27 i

= - 27 i + 12 + 15

Add the numbers:

12 + 15 = 27

= - 27 i + 27

Rewrite in standard complex form:

27 - 27 i

= 27 - 27 i

2 x^{2} - 3 x - 3 = x + 1

15 x (x - 5) < 3 (5 x - 1) (x - 6)

2^{- \frac{1}{2}}

25 - 64 u^{2}

\frac{1}{3 - i}