Question

Can someone please help me understand? :)


Subtract. (8f2 - 3f - 4) - (f2 - 2)

Answers:

7f2 - 3f - 6

7f2 - 3f - 2

7f2 - 6

7f2 - 2

Answer 1

Do u knw what r like terms?

Answer 2

2?

Answer 3

hmm no.
Terms containing similar variables are like terms.
For example x and 2x are like terms.
Similarly 4x^2 and 7x^2 are like terms.
In the same way a^3 and 6a^3 are like terms. Getting this @InsanelyChaotic?

Answer 4

How are x and 2x similar?

Answer 5

im not sure how it is today, but when i was back in the 2nd grade learning how to add and subtract, we lined things up in a vertical format, not this side by side format.

Answer 6

how are 1 apple and 2 apples similar?

Answer 7

How are any of those like terms for that matter.

Answer 8

By the aspect that they both contain the x.

Answer 9

(8f2 - 3f - 4)
- (f2 - 2)

line up like terms

(8f2 - 3f - 4)
- ( f2 - 2)

and do the subtraction column by column


8f2 - 3f - 4
- f2 -(-2)
-------------

Answer 10

thank you @ajprincess

Answer 11

so, -4- (-2)?

Answer 12

equals -2

Answer 13

Yea..its -2

Answer 14

Thank you but one more question pertaining to this problem

Answer 15

Couldn't it either be B or D?

Answer 16

Or do you have to add the "3f" into the factor?

Answer 17

B or D would be a good way to narrow it down, but only one of them is correct

Answer 18

the 3f never gets touched, so it has to be a part of the finished results

Answer 19

I gather that :) my question is in most circumstances, is it going to be the problem with the number that's also in the question? if that makes sense?

Answer 20

ohhhhhhhhhh @amistre64

Answer 21

Thank you everyone :)

Answer 22

good luck ;)

Answer 23

welcome:)