Roots and Zeros

-9x-15=0

A first order polynomial has just one root:

-9x-15 = 0
or -9x = 15
or x = -15/9

thank you =D

IN my HW it says:

Solve each equation.State the number and type of roots.

-9x-15=0

Ok, then the answer is ONE REAL ROOT.

To find the roots or zeros of the equation -9x - 15 = 0, we need to solve for x.

Step 1: Begin by moving the constant term to the other side of the equation. Add 15 to both sides:

-9x - 15 + 15 = 0 + 15

This simplifies to:

-9x = 15

Step 2: Divide both sides by the coefficient of x, which is -9:

(-9x) / -9 = 15 / -9

The -9's on the left-hand side cancel out, leaving us with:

x = -15 / 9

Step 3: Simplify the fraction, if possible. In this case, we can divide both numbers by their greatest common divisor, which is 3:

x = -5 / 3

So, the root or zero of the equation -9x - 15 = 0 is x = -5 / 3, which means that if you substitute x with -5 / 3 in the equation, it will satisfy the equation and make it true.