Tuesday

September 30, 2014

September 30, 2014

Posted by **Rachal** on Sunday, January 23, 2011 at 6:38am.

x-(6+2i)][x-(6-2i)]

Note that these expressions contain complex numbers.

Simplify your answer as much as possible.

- complex numbers -
**MathMate**, Sunday, January 23, 2011 at 8:41amLet a=6+2i, b=6-2i

(x-a)(x-b)

=x²-(a+b)x+ab

a+b = 12

ab=6²-(2i)²

=36-(-4)

=40

So

(x-a)(x-b)

=x²-12x+40

**Answer this Question**

**Related Questions**

algebra - multiply and simplify by factoring. Assume that all expressions under ...

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

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

math,algebra - Use the five properties of exponents to simplify each of the ...

algebra - multiply and simplify by factoring. Assume that all expressions under ...

Algebra II - Simplify this complex expressions to simple expressions. 1 - _9_ x^...

algebra problem - Find the greatest common factor of the two expressions 18wx^7z...

Algebra II - I have some questions on my assignment, if you dont mind could you ...

ALGEBRA - Multiply & simplify Assume that all expressions under the radicals ...

Algebra 2/Trig. - I forgot some stuff from my 7th grade algebra class about ...