Unit 7, Lesson 5# Solving Radical Equations

EngageNY 45 min(s)

Students find the positive solutions to equations algebraically equivalent to equations of the form 𝑥^2 = p and 𝑥^3 = p. As with previous lessons, students are asked to find only the positive value of 𝑥 that makes each equation true. However, we have included in the examples and exercises both the positive and the negative values of 𝑥 so that the teacher can choose whether to provide the rationale for both solutions and whether to require students to give them as part of their answers. Just recently, we began solving equations that required us to find the square root or cube root of a number.