Question

(5+2i)-(9i^2-6i)
pls show work so i can understand ;-;

Answer 1

• i=√-1

`\\ \tt\longmapsto (5+2i)-(9i^2-6i)`

`\\ \tt\longmapsto 5+2i-9i^2+6i`

`\\ \tt\longmapsto 5+8i+9`

`\\ \tt\longmapsto 8i+14`

Answer 2

• 14 + 8i

Explanation:

Given expression:

• (5 + 2i) - (9i² - 6i)

Simplify by opening parenthesis and considering that i² = - 1:

• (5 + 2i) - (9i²-6i) =
• 5 + 2i - 9(-1) + 6i =
• 5 + 8i + 9 =
• 14 + 8i