Mrs. Cho wrote the following problem on the board. Problem: StartFraction 1 Over x squared EndFraction minus StartFraction 2 Ov

Question

Mrs. Cho wrote the following problem on the board.

Problem: StartFraction 1 Over x squared EndFraction minus StartFraction 2 Over y EndFraction divided by y minus 2 x squared

Step 1: StartFraction y Over x squared y EndFraction minust StartFraction 2 x squared Over x squared y EndFraction divided by y minus 2 x squared

Step 2: StartFraction y minus 2 x squared Over x squared y EndFraction divided by StartFraction y minus 2 x squared Over 1 EndFraction

Step 3: StartFraction y minus 2 x squared Over x squared y EndFraction times StartFraction 1 Over y minus 2 x squared EndFraction

What should Mrs. Cho do next?

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Liliana 2 weeks 2021-10-08T02:25:55+00:00 1 Answer 0

Answers ( )

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    2021-10-08T02:27:10+00:00

    Answer:

    Multiply the numerators and the denominators.

    Step-by-step explanation:

    Problem: \dfrac{1}{x^2}- \dfrac{2}{y}\div y-2x^2

    Step 1: \dfrac{y}{x^2y}- \dfrac{2x^2}{x^2y}\div y-2x^2

    Step 2: \dfrac{y-2x^2}{x^2y} \div \dfrac{y-2x^2}{1}

    Step 3: \dfrac{y-2x^2}{x^2y} X \dfrac{1}{y-2x^2}

    The next step would be to multiply the numerators and the denominators.

    Step 4: \dfrac{y-2x^2}{(x^2y)(y-2x^2)}

    Since y-2x^2 is common in the numerator and denominator, it divides itself, thus our result is:

    \dfrac{1}{x^2y}

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