Question

What does the fundamental theorem of algebra illustrate?

Answer 1

1. complex 2. 2+6 3. 2-6

Explanation:

i took the test :)

Answer 2

see below

Explanation:

The "fundamental theorem of algebra" tells you the number of roots of a polynomial is equal to its degree. This includes real and complex roots and counts repeated roots the number of times they are repeated. (Real numbers are a subset of Complex numbers, so the choice of "complex" for this problem is appropriate.)

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The given quadratic can be solved using the quadratic formula:

for ax²+bx+c=0, the solutions are

... x = (-b±√(b²-4ac))/(2a)

Here, a=2, b=-4, c=-1, so ...

... x = (4 ±√(16 -4·2·(-1)))/(2·2)

... x = (2±√6)/2