Question

im going to die please help

Answer 1

Which expression is equivalent to the area of metal sheet required to make this square-shaped traffic sign?

A square shaped traffic sign is shown with length of one side labeled as 4x plus 3.

16x2 + 12x + 9
16x2 + 24x + 9
8x2 + 9
8x2 + 6

Answer 2

Area of a square is
\[A=s^2\]
you know that the side length is s=4x+3.
\[A=(4x+3)^2\]

Answer 3

Right, as your question says >> A square shaped traffic sign !

Answer 4

so would the answer be c

Answer 5

no here's how to expand (4x + 3)^2:-
= (4x + 3)(4x + 3)
= 4x(4x + 3) + 3(4x = 3)

Can you continue form here?

Answer 6

* from

Answer 7

d?

Answer 8

No
4x(4x + 3) + 3(4x = 3)
= 4x*4x + 4x*3 + 3*4x + 3*3

Answer 9

can you do these multiplications?

Answer 10

a right

Answer 11

yes?

Answer 12

4x* 4x = 16x^2
4x*3 = 12x

can you work out the other 2 ?

Answer 13

im so confused

Answer 14

im sorry i am so horrible at math

Answer 15

can you see why 4x * 3 = 12x ??

3 times 4 = 12 and the x stays as its is

Answer 16

and 3 times 4x gives the same results ( the order does not matter here)

Answer 17

I cant give you the answer. You need to study some basic algebra.

Answer 18

it would be 16x2 + 24x + 9

Answer 19

if i multiply those things right? @welshfella

Answer 20

16x^2 + 12x + 12x + 9
= 16x^2 + 24x + 9

Answer 21

right

Answer 22

thank you

Answer 23

can you help with another one?

Answer 24

@welshfella

Answer 25

Find the quotient of quantity of 4 times x to the 3rd power minus 12 times x to the 2nd power plus 8 times x all over negative 4 times x.

−x2 + 3x − 2
x2 − 12x + 4
−x2 − 3x + 2
x2 + 12x − 4

Answer 26

i think its c

Answer 27

^ flvs?

Answer 28

yes

Answer 29

same

Answer 30

isnt welshfella the brainly person that always advertised? @welshfella

Answer 31

idk

Answer 32

that's not me.
I don't like brainly very much.

Answer 33

oh true

Answer 34

idk i just remember a cat

Answer 35

is no one going to help me

Answer 36

not to be rude or anything

Answer 37

oh lol

Answer 38

just did this yesterday

Answer 39

4x^3 - 12x^2 + 8x
-----------------
-4x


divide -4x into each of the terms at the top

so 4x^3 / -4x = -x^2

( note that you subtract the exponents when you divide. x^3 / x = x^(3-1) = x^2)

and 4 /- 4 = -1

Answer 40

next you need to work out - 12x^2 / -4 x

Answer 41

and it was chestercat that always spammed

Answer 42

chestercat 4 years ago

See more answers at brainly.com

Answer 43

what?

Answer 44

-12 / -4 = + 3
and x^2 / x = x


now try and finish it off

Answer 45

would it be b?

Answer 46

no
because we just worked out the first term which is -x^2

Answer 47

and you said it wasnt c

Answer 48

so its a

Answer 49

@welshfella

Answer 50

it was a

Answer 51

Look, \[\frac{4x^3 - 12x^2 + 8x}{-4x}\]
You'll split the denominator to the terms on the numerator
\[\frac{4x^3}{-4x}+\frac{-12x^2}{-4x}+\frac{8x}{-4x}\]
Simplifying it,
\[=-x^2+3x+?\]

Answer 52

You'll just need to work out \(\frac{8x}{-4x}\) and you're done