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Solve the equations in Parts A and B using inverse operations. Check your solutions. In your final answer, include all of your work.

Part A: 5 + x^2 = 2x^2 + 13

Part B: 5 + x^3 = 2x^3 + 13

Answer :

Answer:

x = - 2√2

x = -2

Step-by-step explanation:

A . 5 + x² = 2 x² +13

    5 + x² - 2 x² - 13 = 0

      - x² -8 = 0

      - x² = 8

         x² = -8

         x = - √8

          x = - 2√2

B . 5 + x³ = 2 x³ + 13

    5 + x³- 2 x³ - 13 = 0

       - x³ -8 = 0

        -x³ = 8

         x³ = -8

      x = - ∛8

         x = -2

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