Question

Is this simplified correctly

(x^5 - x^4 + 3x^3 + x^2) - (9x^5 - 4x^4 + 3x^3 - 5x)
x^5 - x^4 + 3x^3 + x^2 - 9x^5 + 4x^4 - 3x^3 + 5x
x^5 - 9x^5 - x^4 - 4x^4 + 3x^3 + 3x^3 + x^2 + 5x
-8x^5 - 5x^4 + 6x^3 + x^2 + 5x

Answer 1

i think -5x4 is wrong

Answer 2

this is very easy to do, but very hard to explain how to -:(

Answer 3

yea ikr i think it suppose to be −8x5+3x4+x2+5x

Answer 4

How is that possible? I don't see how you can get that answer.

Answer 5

long explaining lol but ill try

Answer 6

Multiply −1 by each term inside the parentheses.
Remove the parentheses around the expression x5−x4+3x3+x2.

x5−x4+3x3+x2−(9x5−4x4+3x3−5x)


Multiply −1 by each term inside the parentheses (9x5−4x4+3x3−5x).

x5−x4+3x3+x2−(9x5)−(−4x4)−(3x3)−(−5x)


Multiply −1 by the 9x5 inside the parentheses.

x5−x4+3x3+x2−9x5−(−4x4)−(3x3)−(−5x)


Multiply −1 by the −4x4 inside the parentheses.

x5−x4+3x3+x2−9x5−1⋅−4x4−(3x3)−(−5x)


Multiply −1 by −4x4 to get 4x4.

x5−x4+3x3+x2−9x5+4x4−(3x3)−(−5x)


Multiply −1 by the 3x3 inside the parentheses.

x5−x4+3x3+x2−9x5+4x4−3x3−(−5x)


Multiply −1 by the −5x inside the parentheses.

x5−x4+3x3+x2−9x5+4x4−3x3−1⋅−5x


Multiply −1 by −5x to get 5x.

x5−x4+3x3+x2−9x5+4x4−3x3+5x

Answer 7

x5−x4+3x3+x2−9x5+4x4−3x3+5x
Since x5 and −9x5 are like terms, add −9x5 to x5 to get −8x5.
−8x5−x4+3x3+x2+4x4−3x3+5x
Since −x4 and 4x4 are like terms, subtract 4x4 from −x4 to get 3x4.
−8x5+3x4+3x3+x2−3x3+5x
Since 3x3 and −3x3 are like terms, add −3x3 to 3x3 to get 0.
−8x5+3x4+x2+5x

Answer 8

So much typing and u get it