Simplify (-3x^2+x^4+x)+(2x^4-7+4x)

$(- 3 x^{2} + x^{4} + x) + (2 x^{4} - 7 + 4 x)$

Step 1

Remove parentheses.

$- 3 x^{2} + x^{4} + x + 2 x^{4} - 7 + 4 x$

Step 2

Add $x^{4}$ and $2 x^{4}$ .

$- 3 x^{2} + 3 x^{4} + x - 7 + 4 x$

Step 3

Add $x$ and $4 x$ .

$- 3 x^{2} + 3 x^{4} + 5 x - 7$

Step 4

Reorder $- 3 x^{2}$ and $3 x^{4}$ .

$3 x^{4} - 3 x^{2} + 5 x - 7$

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