Question

What is the value of p if -3 is one of the zeroes of the polynomial 5y² - py -18​

Answer 1

Answer:

p = -9

Step-by-step explanation:

Let p(y) = 5y² - py -18

Put y= -3 in the given equation

p(-3) = 5(-3)² - p(-3) -18

0= 5×9 +3p-18

0= 45-18 +3p

0= 27+3p

-27= 3p

-27÷3= p

-9= p