Chapter 3 Review A2D

$$x = ±3i√2$$

The solutions are $$x = -8$$ and $$x = 4$$ .

The roots are $$x = 4$$ and $$x = 5$$ .

The simplified form is $$13 - 13i$$ .

The solution is $$x = (3 ± i√31)/2$$ .

The Quadratic Formula is $$x = \frac{{-b ± \text{√}(b^2 - 4ac)}}{{2a}}$$ .

A complex number is a number that can be expressed in the form $$a + bi$$ , where $$a$$ and $$b$$ are real numbers and $$i$$ is the imaginary unit.

The discriminant is given by $$b^2 - 4ac$$ in the quadratic equation $$ax^2 + bx + c = 0$$ .

A negative discriminant indicates that the quadratic equation has two complex (imaginary) roots.

The standard form of a complex number is $$a + bi$$ , where $$a$$ is the real part and $$b$$ is the imaginary part.