Respuesta :

[tex](4u^2-7u+6)+(10u^2-7u-9)[/tex]

In order to find the sum of the expressions, we group the terms that have the same exponents maintaining the signs

[tex](4u^2+10u^2)+(-7u-7u)+(6-9)[/tex]

then, simplify each term

[tex]14u^2-14-3[/tex]

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