LT 3b Warm Up

To undo a square root in an equation, you need to

• multiply both sides by 2

• square both sides

• take the square root of both sides

• divide both sides by 2

Tags

CCSS.8.EE.A.2

Why should you check your answer to a radical equation?

• To make sure you didn't make an error

• To make sure the answer is not extraneous

• Both Options

Tags

CCSS.HSA.REI.A.2

What is an extraneous solution?

• An answer that comes out to a fraction.

• An answer that doesn't work when you check it in the original equation.

• A very large solution.

• An answer that only an alien would know.

What is the first step to solve?

• divide by 4x

• cross multiply

• divide by x-2

• multiply by 3