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 + x2 = 2x2 + 13 part b: 5 + x3 = 2x3 + 13 i need !

 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

answer: -8.2562234e+13