Why do you need to find zero in a polynomial

Use the Rational Zero Theorem to list all possible rational zeros of the function.

Use synthetic division to evaluate a given possible zero by synthetically dividing the candidate into the polynomial.

Repeat step two using the quotient found with synthetic division.

Find the zeros of the quadratic function.

Step-by-step explanation:

Hope it helps

the distance between the school and her home is 3.6km.

12 mins = 0.2 hours = 1/5 hour

54 ÷ 3 = 18km per hour

1/5 of 18 = 3.6km per 12 mins