Question

(-5a^3-4a^2+10)-(3a^3+5a^2-3a-1)+(-5a^3-6a^2+3a-2)

Answer 1

Its getting harder

Answer 2

\[(-5a^3-4a^2+10)-(3a^3+5a^2-3a-1)+(-5a^3-6a^2+3a-2)\]

Look at: \[-(3a^3+5a^2-3a-1)\]

Because there is a negative sign in front, all the symbols inside change. So change all the symbols for me, hun.

Answer 3

(5a^3+4a^2-10)+(3a^3-5a^2-3a+1)-(5a^3+6a^2-3a+2)

Answer 4

Look at it again: \[(-5a^3-4a^2+10)-(3a^3+5a^2-3a-1)+(-5a^3-6a^2+3a-2)\]

There is only one negative sign in front of a set of parenthesis. ONLY the set in front of the negative sign changes.

Answer 5

(5a^3+4a^2-10)+(3a^3+5a^2-3a-1)+(-5a^3-6a^2+3a-2)

Answer 6

Wait sorry

Answer 7

Wait im right. Right?

Answer 8

\[(-5a^3-4a^2+10) + (-3a^3- 5a^2 + 3a + 1)+(-5a^3-6a^2+3a-2)\]

ONLY the terms INSIDE the parenthesis that the NEGATIVE SIGN is IN FRONT of change.

For example: \[(x + y) - (z - c) = (z + y) + (-z + c)\]

Answer 9

yeah its right

Answer 10

Now look how I changed \[-(3a^3 + 5a^2 - 3a - 1) = + (-3a^3 - 5a^2 + 3a + 1)\]

Answer 11

So now, go back to the original expression:

\[(-5a^3-4a^2+10) + (-3a^3- 5a^2+3a+1)+(-5a^3-6a^2+3a-2)\]

Remove parenthesis: \[-5a^3-4a^2+10 -3a^3- 5a^2+3a+1-5a^3-6a^2+3a-2\]

Add like terms.

Answer 12

13a^3+15a^2+6a+9

Answer 13

Am i correct

Answer 14

You made one mistake. \[13a^3-15a^2+6a+9\]

Minus fifteen NOT plus fifteen.

Answer 15

Im getting closer

Answer 16

Hold on. It says that the answer is wrong

Answer 17

Yes! You're getting good! Soon, you'll be teaching me!

Remember, to always give someone who you found helpful a medal.

Answer 18

I am doing an online homework and it gives me two chances. I put the answer and it says its wrong

Answer 19

Impossible. I just ran it through a math-solver to check. It even said my solution was correct.

Answer 20

Thats odd

Answer 21

I got the answer wrong it says it was -13

Answer 22

-13? Huh? That doesn't even make sense. Ar you sure it said, "simplify," the answer?

Answer 23

yes

Answer 24

You should report it to your teacher.

Answer 25

Can you help me with this last one (4w^2+6wd-4d^2)-(8w^2-4wd+18d^2)

Answer 26

I did it but i got 12w^2-10wd+22d^2

Answer 27

I did what you told me to change the signs from the parenthesis before the negative sign

Answer 28

I'm busy. I'll just give you the answer since you're eager to learn.

\[-22d^2 + 10dw - 4w^2\]

Answer 29

thank you

Answer 30

Wow i was way off but ill find out how you got it.

Answer 31

wait isnt it the other way around

Answer 32

isnt it -4w^2+10dw-22d^2

Answer 33

The formation isn't important unless the lesson ays-so.