Quadratics and Complex Numbers Review

Front

What is the product of 6i and 5i?

Back

-30

Front

What is the opposite of squaring a number?

Back

Square root

Front

What is the product of i√5 and i√15?

Back

-5√3

Front

What is the result of (2x³ - 5x² + 3x - 10) - (x³ - 7x + 4)?

Back

x³ - 5x² + 10x - 14

Front

What is the domain of a function that is defined for all real numbers?

Back

(-∞, ∞)

Front

Define a complex number.

Back

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

Front

What is the imaginary unit 'i'?

Back

The imaginary unit 'i' is defined as the square root of -1.

Front

What is the standard form of a quadratic equation?

Back

The standard form is ax² + bx + c = 0, where a, b, and c are constants.

Front

How do you find the roots of a quadratic equation?

Back

Use the quadratic formula: x = (-b ± √(b² - 4ac)) / (2a).

Front

What is the vertex of a parabola?

Back

The vertex is the highest or lowest point of the parabola, depending on its orientation.