Question

the polynomial whose zeroes are -5 and 4 is
A. x^2-5x+4
B. x^2+5x-4
C. x^2+x-20
D. x^2-ax-20

Answer 1

Answer:

Step-by-step explanation:

K [x² - (sum of zeroes)x + product of zeroes ]

sum of zeroes = -5 + 4 = -1

product of zeroes = -5 x 4 = -20

[x² - (-1)x + -20 ]

x² + x - 20