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Radicals and Rational Exponents: Algebra 2 Math Test – PDF Download

    This algebra 2 radicals rational exponents test checks radicals and rational exponents in 45 minutes, with 8 questions for a total of 20 points.

    This test covers nth roots, rational exponents, simplifying radicals and solving radical equations, Common Core N-RN.A.1, N-RN.A.2 and A-REI.A.2. It has eight questions worth 20 points in total. A calculator is allowed for decimals only. Show all work for full credit.

    Test information
    • Grade: Algebra 2
    • Chapter: Radicals and Rational Exponents
    • Common Core: N-RN.A.1, N-RN.A.2, A-REI.A.2
    • Time: 45 minutes
    • Total: 20 points (Question 1: 2 pts; Question 2: 2 pts; Question 3: 2 pts; Question 4: 2 pts; Question 5: 2 pts; Question 6: 3 pts; Question 7: 3 pts; Question 8: 4 pts)

    Algebra 2 Radicals Rational Exponents Test: questions 1–5

    Question 1: Roots and powers (2 points)

    Evaluate each expression without a calculator.

    1. \(\sqrt[3]{-125}\) (1 point)
    2. \(81^{3/4}\) (1 point)

    Question 2: Radical and exponent forms (2 points)

    1. Write \(x^{5/3}\) as a radical. (1 point)
    2. Write \(\sqrt[4]{y^{3}}\) with a rational exponent. (1 point)

    Question 3: Simplify radicals (2 points)

    Simplify each answer.

    126c
    Not drawn to scale.
    1. Find the exact length \(c\) of the hypotenuse of the triangle shown. (1 point)
    2. Simplify \(\sqrt[3]{40x^{4}}\), where \(x\) is positive. (1 point)

    Question 4: Combine radicals (2 points)

    1. Simplify \(5\sqrt{12}-\sqrt{48}+\sqrt{75}\). (1 point)
    2. Rationalize the denominator of \(\frac{12}{\sqrt{8}}\). (1 point)

    Question 5: Exponent properties (2 points)

    Simplify. Assume \(x\) and \(a\) are positive.

    1. \(x^{2/3}\cdot x^{3/4}\) (1 point)
    2. \((16a^{4})^{3/4}\) (1 point)

    Algebra 2 Radicals Rational Exponents Test: questions 6–8

    Question 6: Solve equations (3 points)

    Solve each equation.

    1. \(2\sqrt{3x-2}-4=6\) (1 point)
    2. \(x^{3/2}=64\) (1 point)
    3. \(\sqrt[3]{x+5}=-2\) (1 point)

    Question 7: Extraneous solution (3 points)

    The graphs of \(y=\sqrt{x+1}\) and \(y=x-1\) are shown.

    -10123456-3-2-101234xy
    Graphs of \(y=\sqrt{x+1}\) and \(y=x-1\).
    1. Use the graph to estimate the solution of \(\sqrt{x+1}=x-1\). (1 point)
    2. Solve the equation algebraically. (1 point)
    3. Check each candidate and name any extraneous solution. (1 point)

    Question 8: Cube-shaped box (4 points)

    A cube-shaped gift box has a volume of \(192\) cubic inches.

    eeeV = 192 cubic inches
    Not drawn to scale.
    1. Find the exact edge length in simplest radical form. (1 point)
    2. Round the edge length to the nearest hundredth. (1 point)
    3. Find the exact total surface area. (1 point)
    4. The box must fit a shelf \(6\) inches high. Does it fit? Explain. (1 point)

    Radicals and Rational Exponents: Algebra 2 test answer key

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    Take this algebra 2 radicals rational exponents test without notes, then grade it with the test answer key out of 20 points.

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    Algebra 2 Radicals and Rational Exponents test

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