Find a degree 3 polynomial with real coefficients having zeros 2 and 1 − 2 i and a lead coefficient of 1. Write P in expanded form. Be sure to write the full equation, including P ( x ) = .

last option

step-by-step explanation:

given that δdef is right and isoceles,

assuming that side df is the hypotenuse means that de an ef are the other 2 sides that intersect at 90° and are of equal length.

because they are of equal length, we can say that they are congruent

because they intersect at 90°, their slopes must be opposite reciprocals.

only the last option satisfies these conditions.