Question

Perform the indicated operation. PLEASEE HELPP HURRYY!! (3 + i) + (5 + 7i) = A) -2 + 6i B) 2 + i C) 8 + 6i D) 8 + 8i

Answer 1

`\boxed{ \bold{ \huge{ \boxed{ \sf{8 + 8i}}}}}`

Option D is the correct option.

Explanation:

`\sf{(3 + i) + (5 + 7i)}`

When there is a ( + ) in front of an expression in parentheses , there is no need to change the sign.

That means, the expression remains the same.

Just remove the unnecessary parentheses

⇒
`\sf{3 + i + 5 + 7i}`

Collect like terms and simplify

⇒
`\sf{3 + 5 + i + 7i}`

⇒
`\sf{8 + 8i}`

Hope I helped!

Best regards!!