Question

WILL FAN AND MEDAL.
Choose the correct simplification of (3x3 + 2x2 − 5x) − (8x3 − 2x2).
Select one:
a. −5x3 + 4x2 − 5x
b. 5x3 + 2x2 + 5x
c. −5x3 − 4x2
d. 5x3 + 2x2

Answer 1

\[(3x^3 +2x^2-5x)-8x^3-2x^2\]

Answer 2

\[(3x^3+2x^2-5x)-(8x^3-2x^2)\]

Answer 3

my third post is the equation trying to be simplified

Answer 4

And these are the possible simplifications
a. −5x^3 + 4x^2 − 5x
b. 5x^3 + 2x^2 + 5x
c. −5x^3 − 4x^2
d. 5x^3 + 2x^2

Answer 5

@phi @Preetha @jigglypuff314 @sleepyjess @myininaya

Answer 6

@.Sam. @agent0smith @mathmate

Answer 7

@rvc @ @Mr_Perfection_xD @A_Burning_Masquerade

Answer 8

@agent0smith can you give me a hand?

Answer 9

same for @mathmate

Answer 10

Hints:
1. distribute the second group of terms (remove parentheses)
2. group like terms, add or subtract.

Answer 11

ok one sec

Answer 12

3x^3 + 2x^2 - 5x - (8x^3 - 2x^2)....first we distribute the - thru the parenthesis
3x^3 + 2x^2 - 5x - 8x^3 + 2x^2...now we combine like terms
-5x^3 + 4x^2 - 5x

is this correct??

Answer 13

Looks right to me! :)

Answer 14

ok thanks!! So I should go with A?

Answer 15

Sorry, choosing the option is your job. I can only help the math part! lol

Answer 16

ok

Answer 17

lol totally agree @mathmate

Answer 18

i guess its sort of obvious :)

Answer 19

do you have time for one more?

Answer 20

Please make a new post so others have a chance.
Some may not even look a the post hen there's a medal already given! lol

Answer 21

ok thanks!!

Answer 22

You're welcome! :)