Question

Find the other zero of the polynomial y²+Ky-60 if one zero is -12.​

Answer 1

Answer:

The other zero of the polynomial y²+ky-60 is 5

Step-by-step explanation:

Here's how:

We have given one zero that is -12

So, p(-12) = 0

(-12)² + k(-12)-60=0

12-k-5=0

k=7

Now, p(×)= y²+7y-60

one factor: y=-12

y+12=0

Dividing the p(×) by (y+12) using long division method

The other factor will be (y-5)

and the other zero will be y=5

And to verify, p(5) should be equal to 0

Hope it helps.