Question

MEDAL AND FAN ;D

The formula for volume of this rectangular prism is:

V = 2x 3 + 17x 2 + 46x + 40

https://media.glynlyon.com/g_alg01_ccss_2013/7/img_alg01u07p18d_01.gif

Find an expression for the missing side length.

Answer 1

okay
whats the formula for rectangular prism?

Answer 2

@nathshely

Is the formula this?

\[V = 2x^3 + 17x^2 + 46x + 40\]

Answer 3

yess sir :D

Answer 4

\[(x + 2)(x+4) = x^2 + 4x + 2x + 8 = x^2 + 8x + 8\]

\[V = LWH\]

Answer 5

i will give you a hint
v = width * height * length
now you have given height and width which is (x+2) (x+4)
when you solve this equation v = blah blah
you will get answer in v = (x+2)(x+4 ) ( ? )
that third bracket is your length

Answer 6

lol wtf @greenlegodude57

Answer 7

so the expression would be?
im lost cx

Answer 8

\[2x^3 + 17x^2 + 46x + 40/ x^2 + 6x + 8\]

This is how you will find the missing side length.

Answer 9

\[\frac{ 2x^3 + 17x^2 + 46x + 40 }{ x^2 + 6x + 8 }\]

Answer 10

Can you solve that @nathshely ?

Answer 11

nouu :c lol

Answer 12

Do you know what the like terms are on the top and bottom?

Answer 13

yeah it would be

Answer 14

19x^2 + 46x + 40

Answer 15

errr
@greenlegodude57 stop

Answer 16

dont make it long way?

Answer 17

i just need the answer guys cx lol

Answer 18

@nathshely what will u do in actual exams

Answer 19

Like terms = \[(2x^2, x^2)\]\[(46x, 6x)\]\[(40, 8)\] You gotta divide them all.

Answer 20

\[\frac{ 40 }{ 8 } = 5\] So the end of your equation will be + 5

Answer 21

its an online class so just come here and ask for help xD

Answer 22

so the expression is (x+2) (x+4) (5)?

Answer 23

lol
i calculated the answer,but i dont think i am gonna tell

Answer 24

lol

Answer 25

@nathshely No, '+ 5' will be at the END of your equation.

Answer 26

(x+2)(x+4)+5?

Answer 27

doesnt she look pretty

Answer 28

\[\frac{ 2x^2 }{ x^2 } = 2x^2\]So the beginning of your equation will be '\[2x^2\]'

Answer 29

no

Answer 30

only 2x

Answer 31

Right, sorry. Typo.

Answer 32

im lost guys :c

Answer 33

i would like to know this method though,what is it called

Answer 34

the answer is 2x+5 @nathshely

Answer 35

@greenlegodude57 whats that method called

Answer 36

thats the answer for the whole thing :o

Answer 37

@aajugdar How did you get that answer?

Answer 38

factorisation

Answer 39

by division?

Answer 40

you initialy find one of the main factors,then divide the expression by it