Simplify the Rational Expression: (8x²-1)/(24x⁵-3x³)

Simplify:

8x2124x53x3 \frac{8x^2-1}{24x^5-3x^3}

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:00 Simply
00:06 Let's break down 24 into factors 8 and 3
00:11 Let's break down power of 5 into power of 3 and square
00:20 Let's mark the common factors
00:41 Let's take out the common factors from the parentheses
00:56 Let's reduce what we can
01:01 And this is the solution to the question

Step-by-step written solution

Follow each step carefully to understand the complete solution
1

Understand the problem

Simplify:

8x2124x53x3 \frac{8x^2-1}{24x^5-3x^3}

2

Step-by-step solution

Let's simplify the given expression:

8x2124x53x3 \frac{8x^2-1}{24x^5-3x^3} Remember that we can reduce complete expressions only when both the numerator and denominator are completely factored into multiplication expressions,

For this, we'll use factorization, identify where in the denominator we can factor out a common factor, do this, then reduce the expressions possible in the fraction we get (reduction sign):

8x2124x53x38x213x3(8x21)13x3 \frac{8x^2-1}{24x^5-3x^3} \\ \frac{8x^2-1}{3x^3(8x^2-1)} \\ \downarrow\\ \boxed{\frac{1}{3x^3}} In the first stage, to factor out the common factor in the denominator, we also used the law of exponents:aman=am+n a^m\cdot a^n=a^{m+n}

Therefore, the correct answer is answer D.

3

Final Answer

13x3 \frac{1}{3x^3}

Practice Quiz

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Complete the corresponding expression for the denominator

\( \frac{12ab}{?}=1 \)

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