Respuesta :

musiclover10045

Part Ato simplify, combine the like terms

 so x^3 * x^6 = x^18 ( multiply 6 x 3)

 then you can divide that by X^2 ( 18/2 =9

 so you now have x^9 and since the y^2 is the only y in the equation that remains the same

 so you end up with x^9 + y^2

Part 2

replace 2x for y to get x^7+2

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