12. Given P(x) = 3x³ + 2x² - x,what is the value of P(2)?
A.20 B.30 C.40 D.50
13. To determine if x - 2 is a factor of
3x⁴ + 5x² - 8, what will you do?
A. multiply the polynomials
B. find the quotient
C. factor the polynomial
D. find the reminder
14.Which of the following is a factor of
x³ + 6x² + 2x - 12?
A. x+2
B. x-2
C. x+3
D. x-3
15.If P(-2) = 0,which of the following statement is true about P(x)?
A. x is a factor of P(x)
B. 2 is a root of P(x) = 0
C. P(0) = -2
D. P(x) = 0, has two negative roots​​