Question

find a quadratic polynomial whose zeroes are -1/3 and 4/5​

Answer 1

Answer:

x² +9+20

Step-by-step explanation:

x² +9+20

Let α = -5 & b = 4

Then a + b = -5 + 4 = -1 & ab = -5 × 4 = -20

Quadratic polynomial x² - (a + b) × ab = 0

=> x² - (-1)x + (-20) = 0

=> x² + x - 20 = 0