E. Verifying a Product

After determining the product of polynomials, the product can be verified by substituting a value for the variable. If the right side of the equation is equal to the left side, the product is verified for that value of the variable. A verification does not guarantee that the two sides are equal for ALL values of the variable, but if the two sides are not equal, you'll know you've made an error.

 

Example 1

Numerically verify that .

Select a value to substitute for t.

This example uses t = 2.

Left Side
Right Side
LS = RS

 

The left side equals the right side, so is verified for t = 2.