Write in Standard Form (4x^3-5x^2+3x-8)+(2x^3-2x^2+6x+12)

$(4 x^{3} - 5 x^{2} + 3 x - 8) + (2 x^{3} - 2 x^{2} + 6 x + 12)$

To write a polynomial in standard form, simplify and then arrange the terms in descending order.

$a x^{2} + b x + c$

Add $4 x^{3}$ and $2 x^{3}$ .

$6 x^{3} - 5 x^{2} + 3 x - 8 - 2 x^{2} + 6 x + 12$

Subtract $2 x^{2}$ from $- 5 x^{2}$ .

$6 x^{3} - 7 x^{2} + 3 x - 8 + 6 x + 12$

Add $3 x$ and $6 x$ .

$6 x^{3} - 7 x^{2} + 9 x - 8 + 12$

Add $- 8$ and $12$ .

$6 x^{3} - 7 x^{2} + 9 x + 4$