Simplify. 10 x 5 + 15 x 3 + 5 x

Question

Simplify.  10      x          5        +  15      x          3        +  5  x

Hassan Watkins · Accepted Answer

Solution:  =  10      x          5        +  15      x          3        +  5  x  =  5  x  (  2      x          4        +  3      x          2        +  1  )

Luz Stokes · Accepted Answer

5  x  (  2      x          4        +  3      x          2        +  1  ), we set   u  =      x          2       and replace it in the equation  5  x  (  2      u          2        +  3  u  +  1  ); factor(2u+1)(u+1); replace u for       x          2        (  2      x          2        +  1  )  (      x          2        +  1  ); we put everything together  5  x  (  2      x          2        +  1  )  (      x          2        +  1  ); final answer

Simplify. 10x^5 +15x^3 +5x

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