Question

simplify: x^9+ 64

Answer 1

(x^3+4)(x^6-4x^3+16)

Answer 2

ok

Answer 3

how?

Answer 4

sum of cube formula

Answer 5

can you plz help me with one more?

Answer 6

if i can

Answer 7

ok
a^2n -64

Answer 8

one more after this and then can you plz tell me the sum of cube formula.

Answer 9

(a^n-8)(a^n+8)

Answer 10

next

Answer 11

a^3 + b^3 = (a + b)(a^2 – ab + b^2)

Answer 12

A designer preparing to paint a wall found its area to be 3x^2 -2x -5 square feet. Find the length and width of the rectangular wall.

Answer 13

(3x-5)(x+1) are length and width

Answer 14

because area = bh

Answer 15

so that area function has to equal the two i gave u

Answer 16

what is (x+1)
Could you please explain this

Answer 17

it can either be length or width

Answer 18

if it is length then the other is width

Answer 19

where did you get (x+1) from?

Answer 20

factoring the area function gives those two

Answer 21

what's the area?

Answer 22

the function you gave me

Answer 23

what did you do to get (x+1)?

Answer 24

by factoring 3x^2 -2x -5

Answer 25

the factors are your width and length and 3x^2 -2x -5 is your area

Answer 26

ok a few more. these are a bit easier but I swear I will give you at least 4 medals

Answer 27

2x+10/x+5

Answer 28

how do we simplify that?

Answer 29

divsion

Answer 30

which gives u 2

Answer 31

can you plz show me

Answer 32

o

Answer 33

wait how
?

Answer 34

what is 2x/2

Answer 35

2(x+5)/(x+5)

Answer 36

u factor and cancel like terms

Answer 37

so i would cancel out x from 2x

Answer 38

no

Answer 39

u cancel out x+5 from bottom and top

Answer 40

then how would I get 2?

Answer 41

2(x+5)/(x+5)

Answer 42

when u cancel both x+5 u get 2 remaining on the top

Answer 43

(x+5)/(x+5) is the same as 1 so 2 x 1 = 2

Answer 44

so I must do 2x+10-x-5