Solve each equation. (2x-1)^2/3 = x^1/3

검증된 단계별 안내

Start by rewriting the equation to clearly see the terms: \( (2x - 1)^{\frac{2}{3}} = x^{\frac{1}{3}} \).

To eliminate the fractional exponents, consider raising both sides of the equation to a power that will clear the denominators. Since the denominators are 3, raise both sides to the power of 3 to get rid of the cube roots.

After raising both sides to the power of 3, simplify the expressions carefully. Remember that \(\left(a^{\frac{m}{n}}\right)^n = a^m\). This will transform the equation into a polynomial form.

Once you have a polynomial equation, expand and simplify all terms to bring the equation into standard polynomial form (e.g., quadratic or cubic).

Solve the resulting polynomial equation using appropriate methods such as factoring, the quadratic formula, or synthetic division. Finally, check your solutions in the original equation to ensure they do not produce extraneous results due to the fractional exponents.

비슷한 문제에 대한 검증된 영상 답변:

이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.

영상 길이:

도움이 되었나요?

주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Rational Exponents

Rational exponents represent roots and powers simultaneously, where the numerator is the power and the denominator is the root. For example, x^(2/3) means the cube root of x squared. Understanding how to manipulate and simplify expressions with rational exponents is essential for solving equations like the given one.

Equation Solving with Exponents

Solving equations involving exponents often requires isolating the variable term and applying inverse operations such as raising both sides to a power that eliminates the fractional exponent. Recognizing equivalent expressions and carefully handling domain restrictions is important to find all valid solutions.

Domain and Extraneous Solutions

When dealing with fractional exponents, especially with even roots, the domain of the variable is restricted to values that keep the expression defined (e.g., no negative values under even roots). Checking for extraneous solutions after solving is crucial because some algebraic manipulations can introduce invalid answers.

Solve each equation. (2x-1)2/3 = x1/3