What is the simplified form of the expression?

 The answer is:  10 x¹³ y¹⁰  . 


1x^8 *  2y^(10) * 5x^5 = 

1* 2* 5 * x^8 * x^5 * y^(10) = 

10 * x^(8+5) * y^(10) =

10 * x^(13) * y^(10) = 10 x^(13) y^10 ;  write as: 

          10 x¹³ y¹⁰ .

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