Question

Subtract.
(6x3 - 10x2 + 6x - 1) - (4x3 - 2x2 - x + 3)

Answer 1

A. 2x3 - 12x2 + 5x + 2
B. 2x3 - 8x2 + 5x + 2
C. 2x3 - 8x2 + 7x - 4
D. 2x3 - 12x2 + 7x - 4

Answer 2

\[(6x^3 - 10x^2 + 6x - 1) - (4x^3 - 2x^2 - x + 3)\]\[(6x^3 - 10x^2 + 6x - 1) + \color{red} {(-1) \times (4x^3 - 2x^2 - x + 3)}\]
See the trick in this question?

Answer 3

it is d

Answer 4

WAITTTT

Answer 5

We are NOT giving out plain answers in math, this is unacceptable!

Answer 6

That was wrong anyways lol I looked at the wrong one :p

Answer 7

i still dont fully understand @SolomonZelman

Answer 8

Ok, I'll show you.

Answer 9

\[x-b~~=~~x\color{red} {+(-b)}~~~~which~~is~~also~~same~~as,~~~~x+\color{red} {(-1) \times b}\]

Answer 10

First, do you agree with this?

Answer 11

uhm sure.. just know i completely do not understand any of this

Answer 12

sorry :(

Answer 13

It's fine, lets do a different example together.

Answer 14

@Mertsj

Answer 15

help?

Answer 16

\[\color{red} {(3x^2-2x)-(x^2+4)}\]\[3x^2-(x^2)~~~~~~~+~~~~~-2x-(+4)\]\[2x^2~~~~~+~~~~~-2x-4x\]\[2x^2~~~~~+~~~~~-6x\]\[2x^2-6x\]

you should be able to understand this process.

Answer 17

Do you know what like terms are?

Answer 18

ones that are similar to one another and what isnt is different
?