Answer:
6 and 3
Explanation:
The Fundamental Theorem of Algebra states.
A polynomial of degree n has n roots.
(1)
This is a polynomial of degree 6 and has 6 roots
(2)
f(x) = (x + 3)(2x - 1)²
= (x + 3)(4x² - 4x + 1)
= 4x³ - 4x² + x + 12x² - 12x + 3
= 4x³ + 8x² - 11x + 3
This is a polynomial of degree 3 and has 3 roots