Question

Is this correct?
(15x^5 - 4x^3 - 3x^2 + 11) - (2x^5 + 3x^3 - 9x - 8)
15x^5 - 4x^3 - 3x^2 + 11 - 2x^5 - 3x^3 + 9x + 8
15x^5 - 2x^5 - 4x^3 - 3x^3 - 3x^2 + 11 + 8 + 9x
13x^5 - 7x^3 - 3x^2 + 19 + 9x
13x^5 - 7x^3 - 3x^2 + 9x + 19

Answer 1

@Nnesha

Answer 2

looks good but i think step 3 is an extra :Dq

Answer 3

Yeah, my teacher likes it when I put a lot of detail:)

Answer 4

Thanks:)

Answer 5

hahah good :D

Answer 6

Oh, I have three more to check, can you just check them right now for me please?

Answer 7

ok

Answer 8

good

Answer 9

Subtract a second degree trinomial from a second degree trinomial.
(6x - 2x^2 + 3) - (4x - 3 - 3x^2)
6x - 2x^2 + 3 - 4x + 3 + 3x^2
6x - 4x - 2x^2 + 3x^2 + 3 + 3
2x + x^2 + 6
x^2 + 2x + 6

Answer 10

Subtract a second degree binomial from a third degree trinomial.
(6x - 3x^3 + 4) - (3x^2 - 3)
6x - 3x^3 + 4 - 3x^2 + 3
6x - 3x^3 + 4 + 3 - 3x^2
6x - 3x^3 + 7 - 3x^2
-3x^3 - 3x^2 + 6x + 7

Answer 11

correct

Answer 12

Both of them?

Answer 13

yes

Answer 14

OK. Thanks Didi!:)

Answer 15

np :=)