Fundamental Theorem of Algebra

The degree of the polynomial determines the number of roots.

• True
• False

How many zeros does the following function have?
f(x)= x⁵ - 3x³ + x

• 8
• 9
• 5
• 3

A Polynomial of Degree 6 CAN have the following number of imaginary roots:

• 1
• 4
• 3
• 8

What is the degree of the following polynomial that has 4 real roots and 2 complex roots?

• 4
• 2
• 8
• 6

If 2i is a zero, then

• 2i repeats twice
• -2i is a zero too
• 1-2i is a zero too
• 0+2i is a zero too

All imaginary roots comes in pairs.

• True
• False

Find all zeros.

• 
• 
• 
• 

Write a cubic polynomial in standard form with roots 3 and 4i

• x³-3x²+16x-48
• x³-8x²-3x+52
• x³+3x²+3x+1
• x³+3x²-16x+48

Find all the roots of y=x³-2x²+4x-8

• -2, 2i, -2i
• 2, 2i, -2i
• 2,-2, 2i
• 1, 2i, 4

Find all the roots of y=x³+x²-x+2

• -2, (1±i√3)/2,
• 2, (1±√3)/2,
• 2, (1±i√3)/2,
• -2, (-1±i√3)/2,