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.