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solve the exponential equation $\\sqrt{a} \\cdot \\sqrt{a} \\cdot a^3 =…

x equals 4

分类: algebra 更新时间: 2026-02-09

题目

solve the exponential equation $\\sqrt{a} \\cdot \\sqrt{a} \\cdot a^3 = a^x$ for x.
options:
x equals 3
x equals 2
x equals $\\frac{2}{3}$
x equals 4

解题步骤

  1. Understand the question

    solve the exponential equation $\\sqrt{a} \\cdot \\sqrt{a} \\cdot a^3 = a^x$ for x.
    options:
    x equals 3
    x equals 2
    x equals $\\frac{2}{3}$
    x equals 4

  2. Explanation

    Step1: Rewrite root as exponent

    $\sqrt{a} = a^\frac{1}{2}$

    Step2: Substitute into left-hand side

    $a^\frac{1}{2} \cdot a^\frac{1}{2} \cdot a^3$

    Step3: Add exponents (same base)

    $\frac{1}{2} + \frac{1}{2} + 3 = 4$

    Step4: Equate exponents (same base)

    $a^4 = a^x \implies x=4$

  3. Final answer

    x equals 4

答案

Explanation

Step1: Rewrite root as exponent

$\sqrt{a} = a^\frac{1}{2}$

Step2: Substitute into left-hand side

$a^\frac{1}{2} \cdot a^\frac{1}{2} \cdot a^3$

Step3: Add exponents (same base)

$\frac{1}{2} + \frac{1}{2} + 3 = 4$

Step4: Equate exponents (same base)

$a^4 = a^x \implies x=4$

Answer

x equals 4

Question Image

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Question Analysis

Subject mathematics
Sub Subject algebra
Education Level high school
Difficulty unspecified
Question Type multiple choice, calculation
Multi Question No
Question Count 1
Analysis Status completed
Analyzed At 2026-02-09T20:11:19

OCR Text

Show OCR extraction
solve the exponential equation $\\sqrt{a} \\cdot \\sqrt{a} \\cdot a^3 = a^x$ for x.
options:
x equals 3
x equals 2
x equals $\\frac{2}{3}$
x equals 4

相关知识点

mathematicsalgebramultiple choice, calculationhigh schoolturns-1

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