MATH Basic Algebra I  - Unit 23: Operations with Radicals

Definition of a Square Root and Simplifying Radicals


1)

What is the mathematical name for the number under the radical sign?


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2)

Describe how to simplify a radical.


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3)

Explain how to determine when a radical is simplified.


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4)

Describe when absolute value signs are used in simplifying radicals.


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For the following problems, find the square root. For responses that require non-keyboard symbols, the answer should be expressed in written form as shown in the example below.


5)

Find the square root.


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6)

Find the square root.


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7)

Find the square root.


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8)

Find the square root.


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9)

Find the square root.


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10)

Simplify.


11)

Simplify.


12)

Simplify.


Operations with Radicals

Adding and Subtracting Radicals


13)

Simplify.


14)

Simplify.


15)

Simplify.


16)

Simplify.


17)

Simplify.


Multiplying Radicals and Dividing Radicals


18)

What is the process called when eliminating a radical from the denominator? 


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19)

Simplify.


20)

Simplify.


21)

Simplify.

Hint:  After you simplify, rationalize the denominator.


22)

Simplify.

Hint:  Combine the two radicals into one radical, then simplify the one radical.


23)

Simplify.

Hint:  Use the FOIL method.


24)

Simplify. Assume all variables are positive numbers.


25)

Simplify. Assume all variables are positive numbers.


26)

Simplify.  Assume all variables are positive numbers.


Review

Click here to review the unit content explanation for Integers and Equations.

Click here to review the unit content explanation for Rational Numbers, Exponents, and Monomials.

Click here to review the unit content explanation for Linear Equations and Graphs.

Click here to review the unit content explanation for More Systems of Equations.

Click here to review the unit content explanation for Quadratics.

Click here to review the unit content explanation for More on Quadratics.

Click here to review the unit content explanation for Rational Expressions and Functions.

Click here to review the unit content explanation for Rational Expressions.


27)

Identify the vertex of the parabola shown below.


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28)

Solve for “x.”


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29)

Add.


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30)

Solve for “a.


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31)

Simplify.


32)

Find the product of (6x + 1)(3x – 1).


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