Q. Use the Fundamental Theorem of Algebra to find the number of complex roots of the polynomial, including any repeated roots. 6x5+18x3−9x2+19____
Find Highest Power: Look at the polynomial 6x5+18x3−9x2+19 and find the highest power of x. The highest power of x is 5.
Fundamental Theorem of Algebra: According to the Fundamental Theorem of Algebra, a polynomial of degree n has exactly n complex roots, counting multiplicities.So, a 5th-degree polynomial has 5 complex roots.
Number of Complex Roots: Therefore, the polynomial 6x5+18x3−9x2+19 has 5 complex roots.