# math

simplify the following expressions involving complex numbers.
(3+2i)-(-7-i)

is i like x? and how would this work i know that you do this:
(3+2i)(7+i)
to get rid of the sign between the expressions.
but then what?

1. 👍 0
2. 👎 0
3. 👁 118

## Similar Questions

1. ### math

simplify the following expressions involving complex numbers. (3+2i)-(-7-i) is i like x? and how would this work i know that you do this: (3+2i)(7+i) to get rid of the sign between the expressions. but then what?

asked by Shay on January 18, 2007

simplify the following expressions involving complex numbers. (3+2i)-(-7-i) 10 + 3i how did you do that? can you show me this one and explain how this time? (3+2i)(-7-i) or even (3-2i)^2 you would do 3+2i=5i, then -7-i=7i then

asked by Shay on January 18, 2007
3. ### Algebra

Multiply. x-(6+2i)][x-(6-2i)] Note that these expressions contain complex numbers. Simplify your answer as much as possible.

asked by Rachal on January 23, 2011
4. ### Algebra II

Simplify this complex expressions to simple expressions. 1 - _9_ x^2 __________ 1 - _3_ x please help me ..

asked by Delle on October 1, 2008
5. ### algebra

I have to simplify this please help how to solve the problem involving rational algebraic expressions 3 over a+2a over 3a=11 over 15

asked by Anonymous on November 6, 2012
6. ### algebra

add the complex expressions, and simplify. (1.9-7¡)+(4.2-2.3¡)

asked by sheba on July 9, 2011
7. ### Math

Add the complex expressions,and simplify. (4+7-9i)+(5+7-3i)

asked by Ms.Ellis on July 6, 2011
8. ### m

=Add the complex expressions,and simplify. (4+7-9i)+(5+7-3i)

asked by Ms.Ellis on July 6, 2011
9. ### Math

Factor the polynomial as the product of factors that are irreducible over the real numbers. Then write the polynomial in completely factored form involving complex nonreal or imaginary numbers. x^4 + 20x^2 -44=0

asked by Chelsea on January 31, 2012
10. ### Math SCREAMING for HELP

Use the quadratic formula to slove the equation. x^2-x=-7 This is what I have got so far and I do not think this is right: x=1(-1)±√-1^2-4(1)(7)/2(1) x=1±√1-4(7)/2 x=1±√-21/2 x=1±-21/2 and here I am lost! Use rational

asked by Sabrina on September 24, 2010

More Similar Questions