Question

verify weather 2 and 5 are zeros of the polynomial x² - 2x - 15 or not.​

Answer 1

Answer:

x² - 2x - 15

⇒ a = 1; b = -2; c = -15

checkin if 2 is the zero or not

⇒ $\alpha +\beta$ = -b/a

⇒ 2 = -(-2)/1

⇒ 2 = 2 --------------> eq. 1

checking if 5 is zero or not

⇒ $\alpha \beta$ = c/a

⇒ 5 = -15/1

⇒ 5 ≠ -15

Answer 2

Answer:

Step-by-step explanation: