Solving Quadratic Equations with the Quadratic Formula

Solving Quadratic Equations with the Quadratic Formula

Assessment

Interactive Video

Mathematics

University

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

The video tutorial explains how to use the quadratic formula to solve for x in quadratic equations. It begins with an introduction to the formula, x = (-b ± √(b² - 4ac)) / 2a, and demonstrates how to substitute values for a, b, and c. An example is provided using the equation 5x² + 8x - 4 = 0, showing step-by-step calculations to find the solutions for x. The tutorial also covers how to plot these solutions on a graph to identify x-intercepts, emphasizing the practical application of the formula in graphing.

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2 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

What are the two possible values of x when solving the equation using the quadratic formula?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

How can the solutions from the quadratic formula be represented on a graph?

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