en

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

simplify (8+i)(2+7i)

Solution

simplify

(8 + i) (2 + 7 i)

Solution

9 + 58 i

Solution steps

(8 + i) (2 + 7 i)

Apply complex arithmetic rule:

(a + bi) (c + d i) = (a c - b d) + (a d + b c) i

= (8 \cdot 2 - 1 \cdot 7) + (8 \cdot 7 + 1 \cdot 2) i

Simplify

(8 \cdot 2 - 1 \cdot 7) + (8 \cdot 7 + 1 \cdot 2) i : 9 + 58 i

= 9 + 58 i

Popular Examples

simplify (x^2+3x+2)/(x^2-1)simplify

\frac{x ^{2} + 3 x + 2}{x ^{2} - 1}

expand (x+3)(x+8)expand

(x + 3) (x + 8)

expand (8-x)^2 expand

(8 - x)^{2}

expand (4x-7)^2 expand

(4 x - 7)^{2}

simplify 25/50 simplify

\frac{25}{50}

Frequently Asked Questions (FAQ)

What is (8+i)(2+7i) ?
The solution to (8+i)(2+7i) is 9+58i