Welcome to the Mathematics OER Smart Library! Our library offers a diverse range of materials—including videos, infographics, games, presentations, animations, and more—covering topics such as algebra, calculus, geometry, statistics, and probability. These resources are available in seven languages: English, Estonian, German, Portuguese, Romanian, Catalan, and Spanish. Additionally, our library includes materials accessible to visually impaired and color-blind individuals. These resources are designed to support educators, students, and researchers in secondary, vocational, and higher education institutions.
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Title
A Quadratic Equation with a Negative Discriminant
Authors
Elena Safiulina, Oksana Labanova
Educational level
Higher Education
Level
easy
Description
This OER explains how to solve quadratic equations with a negative discriminant, leading to complex solutions. It includes interactive exercises such as identifying the nature of roots, solving quadratic equations step by step using the quadratic formula, and plotting complex solutions on a coordinate plane. These activities help students understand the concept and apply it to real-world contexts like electrical engineering and physics.
Licence
CC-BY
Type
Tutorial
Category
High-school fundamentals
Keywords
Complex Roots, Discriminant, Quadratic Equation
File
TTK-008-TUT-EN.h5p