Precalculus Examples
,
Step 1
Since the roots of an equation are the points where the solution is , set each root as a factor of the equation that equals .
Step 2
Expand using the FOIL Method.
Apply the distributive property.
Apply the distributive property.
Apply the distributive property.
Simplify terms.
Combine the opposite terms in .
Reorder the factors in the terms and .
Subtract from .
Add and .
Simplify each term.
Multiply by .
Multiply by .