Pre-Algebra Examples

$4 x^{3} + 2 x^{2} - 4 x + 3$ and $7 x^{3} - 4 x^{2} + 7 x + 8$

Step 1

Add the expressions.

$4 x^{3} + 2 x^{2} - 4 x + 3 + 7 x^{3} - 4 x^{2} + 7 x + 8$

Step 2

Add $4 x^{3}$ and $7 x^{3}$ .

$11 x^{3} + 2 x^{2} - 4 x + 3 - 4 x^{2} + 7 x + 8$

Step 3

Subtract $4 x^{2}$ from $2 x^{2}$ .

$11 x^{3} - 2 x^{2} - 4 x + 3 + 7 x + 8$

Step 4

Add $- 4 x$ and $7 x$ .

$11 x^{3} - 2 x^{2} + 3 x + 3 + 8$

Step 5

Add $3$ and $8$ .

$11 x^{3} - 2 x^{2} + 3 x + 11$