# Find the Equation Given the Roots -2i , 5

,
Roots are the points where the graph intercepts with the x-axis .
at the roots
The root at was found by solving for when and .
The factor is
The root at was found by solving for when and .
The factor is
The root at was found by solving for when and .
The factor is
Combine all the factors into a single equation.
Multiply all the factors to simplify the equation .
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 .
Simplify each term.
Multiply by .
Multiply .
Multiply by .
Raise to the power of .
Raise to the power of .
Use the power rule to combine exponents.
Rewrite as .
Multiply by .
Expand using the FOIL Method.
Apply the distributive property.
Apply the distributive property.
Apply the distributive property.
Simplify each term.
Multiply by by adding the exponents.
Multiply by .
Raise to the power of .
Use the power rule to combine exponents.