![]() Solution: To solve 2x - y 5 and y - 4x 1, we will use the elimination method as it is easy to eliminate the variable y by adding the two equations. ![]() Choose a value between \(-1\) and \(6\) and check. Example 1: Solve the simultaneous equations 2x - y 5 and y - 4x 1 using the appropriate method. We solve equations, because any quadratic equation may have up to two values for x that make the equation true. Equations have an sign, expressions do not. ![]() Solving Quadratic Inequalities – Example 3: Quadratic equations are obtained by letting a quadratic expression equal another quadratic expression, or a linear expression (e.f. Now, the solution could be \(x≤2\) or \(x≥5\). Quadratic worksheets can also be used to help you find the product, sum, and discriminant for quadratic equations. Below are the 4 methods to solve quadratic equations. In other words, a quadratic equation must have a squared term as its highest power. Solving Quadratic Inequalities – Example 2: A quadratic equation is an equation that can be written as ax ² + bx + c where a 0.
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