Answer
$6x^5$+$5x^4$+$3x^2$+x
Work Step by Step
($6x^5$+$x^3$+x)+($5x^4$-$x^3$+$3x^2$)
Remove parenthesis and combine like terms
$6x^5$+$x^3$+x+$5x^4$-$x^3$+$3x^2$
$6x^5$+$5x^4$+$3x^2$+x
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