Question

If 2 is a zero of polynomial 4ysquare _ 6y _ k, find the value of k. Also find the other zero.

Answer 1

Answer:

K=4

Y=2, - 1/4

Step-by-step explanation:

P(y)=4y^2-6y-k=0

P(2)=0

=4(2)^2-6(2)-k=0

=16-12-k=0

=4-k=0

K=4

4y^2-6y-k=0

4y^2-6y-4=0. P=-16. S=-6

4y^2-8y+2y-4=0. F=2,-8

4y(y-2)+2(y-2)=0

(4y+2)(y-2)=0

y=2,-1/2