X + x2 - 5x -5 = 0
state the possible rational zeros and find all the zeros of the polynomial

The zeros of the polynomial are -1 and 5

Step-by-step explanation:

Quadratic Equation Solving

The standard representation of a quadratic equation is:

where a,b, and c are constants.

Solving with the quadratic formula:

We have the following equation to solve:

Before attempting to solve it, we must simplify the equation.

Collecting like terms and reordering:

Here: a=1, b=-4, c=-5

The discriminant of this quadratic equation is:

Given d is positive, the equation has two roots, and since d is a perfect square, both roots are rational.

Applying the formula:

Dividing by 2:

Separating both roots:

x = 2 + 3 = 5

x = 2 - 3 = -1

The zeros of the polynomial are -1 and 5

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)