Question

SUBTRACT

Answer 1

Answer:

$-3x^{4} + 3{x}^{3} + 8{x}^{2}- 2x - 5$

Step-by-step explanation:

To avoid confusion, distribute the negative amongst all terms in the second set of parentheses.

I hope this helps you out alot, and as always, I am joyous to assist anyone at any time.

Answer 2

Answer:

$-3x^4+3x^3+8x^2-2x-5$

Step-by-step explanation:

We have the expression $(-2x^4-2x^3+8x^2+2)-(x^4-5x^3+2x+7)$ we can rewrite it as:

$-2x^4-2x^3+8x^2+2-x^4+5x^3-2x-7$

We have to reorder and group similar terms:

$-2x^4-2x^3+8x^2+2-x^4+5x^3-2x-7=\\=(-2x^4-x^4)+(-2x^3+5x^3)+(8x^2)+(-2x)+(2-7)$

$=(-3x^4)+(3x^3)+(8x^2)+(-2x)+(-5)\\=-3x^4+3x^3+8x^2-2x-5$

Then the answer in standard form is:

$-3x^4+3x^3+8x^2-2x-5$