Understanding Radical Equations

The video tutorial explains how to solve radical equations by isolating the radical and raising both sides to the power of the radical's index. It covers solving cube root equations, handling multiple radicals, and using rational exponents. The tutorial also addresses solving quadratic equations derived from radical equations and emphasizes checking for extraneous solutions.

What is the first step in solving a radical equation?

• Divide both sides by the radical

• Isolate the radical

• Multiply both sides by the index

• Add a constant to both sides

Tags

CCSS.HSA.REI.A.2

When solving a cube root equation, what should you do after isolating the radical?

• Raise both sides to the second power

• Raise both sides to the third power

• Add a constant to both sides

• Subtract a constant from both sides

Tags

CCSS.HSA.REI.A.2

Why is it important to check your solutions in radical equations?

• To verify the equation is linear

• To ensure the solution is not extraneous

• To confirm the equation is quadratic

• To check if the solution is negative

Tags

CCSS.HSA.REI.A.2

What is the result of squaring both sides of an equation with radicals on both sides?

• The radicals are eliminated

• The equation becomes linear

• The radicals are doubled

• The equation becomes cubic

How do you handle equations with fractional exponents?

• Multiply by the reciprocal

• Divide by the exponent

• Convert them to logarithmic form

• Convert them to radical form

Tags

CCSS.HSA.REI.A.2

What is the purpose of raising both sides of an equation to the power of the index?

• To add a constant

• To eliminate the radical

• To simplify the equation

• To change the equation's form

Tags

CCSS.HSA.REI.A.2

What method can be used to solve quadratic equations derived from radical equations?

• Graphing

• All of the above

• Factoring

• Completing the square

Tags

CCSS.HSA.REI.A.2

Why might a solution to a quadratic equation be extraneous?

• It is greater than zero

• It is a complex number

• It is a negative number

• It does not satisfy the original equation

Tags

CCSS.HSA-REI.B.4B

What should you do if a quadratic equation has two potential solutions?

• Check both solutions in the original equation

• Choose the negative solution

• Choose the positive solution

• Ignore both solutions

Tags

CCSS.HSA.APR.A.1

What is the result of foiling the expression (5 - x)(5 - x)?

• 25 + x^2

• 25 - x^2

• 25 + 10x + x^2

• 25 - 10x + x^2

Tags

CCSS.HSA.APR.A.1