Find the real or imaginary solutions. x^4 + 3x^2 - 18 = 0

Step-by-step explanation:

Biquadratic Equations

Solve:

The biquadratic equations are equations of degree 4 without the terms of degree 1 and 3.

Solving such equations requires to express the equation as a second-degree equation with as the variable.

Rewriting the equation:

The quadratic equation can be factored as:

It leads to two equations:

The first equation has imaginary roots. Solving for x:

Where

The second equation has two real roots:

The roots are:

a) justify

step-by-step explanation:

justifying is just part of everyday life. justify kind of means proof so i think the answer is a) justify.

step-by-step explanation:

. your answer will contain x - and y -terms. (1 point) x ( ¿¿ 2 − 7 ) 2 +( y 2 − 9 ) 2 √ ¿ 12. what is the distance from the directrix (the crocodile river) to the point ( x , y )? write this equation. your answer will contain a y -term.