Solving Quadratics with Square Roots

Grade 7•45 minutes

Learning Objective

I can solve simple quadratic equations in the form ax² = c by using square roots and determine whether there are one, two, or no real solutions.

This lesson includes 6 practice questions to reinforce learning.

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1. What is the first step in solving the equation 5x² - 20 = 0 for x?

2. Solve for x: x² = 9

3. Solve for x: 3x² = 12. How many real solutions are there?

...and 3 more questions

Using square root method to solve a quadratic equation with one variable

Brian McLogan