Simplify (5x^3+7x-8)+(2x^3-5x^2-x+3)

$(5 x^{3} + 7 x - 8) + (2 x^{3} - 5 x^{2} - x + 3)$

Step 1

Remove parentheses.

$5 x^{3} + 7 x - 8 + 2 x^{3} - 5 x^{2} - x + 3$

Step 2

Add $5 x^{3}$ and $2 x^{3}$ .

$7 x^{3} + 7 x - 8 - 5 x^{2} - x + 3$

Step 3

Subtract $x$ from $7 x$ .

$7 x^{3} + 6 x - 8 - 5 x^{2} + 3$

Step 4

Simplify the expression.

Add $- 8$ and $3$ .

$7 x^{3} + 6 x - 5 x^{2} - 5$

Move $6 x$ .

$7 x^{3} - 5 x^{2} + 6 x - 5$