Unit 4B Flashcard Review

Front

Solve by the Square Root method: x² = 16

Back

± 4

Front

Find the missing value 'c' to create a perfect square trinomial: x² - 8x + ___

Back

16

Front

What number should be added to complete the square?

Back

49

Front

Determine the values of a, b and c for the quadratic function 4x² - 8x = 3 (hint.... this equation is NOT in order)

Back

a = 4, b = -8, c = -3

Front

Solve by the Square Root method: -5x² = -50

Back

± √10

Front

Definition: Perfect Square Trinomial

Back

A trinomial that can be expressed as the square of a binomial, e.g., (x - a)² = x² - 2ax + a².

Front

Definition: Completing the Square

Back

A method used to convert a quadratic equation into a perfect square trinomial.

Front

Definition: Quadratic Function

Back

A function of the form f(x) = ax² + bx + c, where a ≠ 0.

Front

Example of a Quadratic Equation: 2x² + 3x - 5 = 0

Back

This equation can be solved using factoring, completing the square, or the quadratic formula.

Front

Quadratic Formula: x = (-b ± √(b² - 4ac)) / (2a)

Back

Used to find the roots of a quadratic equation.