Question

find the zero of the polynomial. h(t)= t²-15

Answer 1

(t+15)(t-15)
t=-15,15

Answer 2

t^2 - 15 = (t + √15)( t - √15)

therefore t+ √15 = 0

t = - √15

similarly t - √15 = 0

and t = √15

so the zeros are √15 and - √15 ans

I hope it is helped you