N.CN.C.9: Know the Fundamental Theorem of Algebra; show that it is true for quadratic polynomials.

Know the Fundamental Theorem of Algebra; show that it is true for quadratic polynomials.

Example Problems

Rewrite the following expression involving complex numbers in the form

a + bi

where

a

and

b

are real numbers:

(3 + 2i)(2 - 5i)

Rewrite the following expression involving complex numbers in the form

a + bi

where

a

and

b

are real numbers:

1 + i + i^2 + i^3

Rewrite the following expression involving complex numbers in the form

a + bi

where

a

and

b

are real numbers:

(1 + i)(13 - 4i)(1 - i)

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