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Alchen [17]
3 years ago
6

SUBTRACT

Mathematics
2 answers:
antiseptic1488 [7]3 years ago
3 0

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.

Dafna11 [192]3 years ago
3 0

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

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