Question

i need help factoring c^2 - 6cd + 9d^2 -4 Can you please write it out so i can see how it is done

Answer 1

c^2 - 2*c*3d +(3d)^2 so after this help i think that will be easy

Answer 2

as difference of squares

Answer 3

can u draw it out so i can understand it beter

Answer 4

yes but firstly you need to make what i have wrote after this we can using (-4) to ending this exercise

Answer 5

i dnt understand what u wrote out

Answer 6

so for you can understanding better look this please

a*a - 2*a*b +b*b = ???

Answer 7

so firstly i like to make you learning this but if you wann i can solving it shortly

Answer 8

Can u draw it out so i can get a visual

Answer 9

how many is (a-b)^2 = ???

Answer 10

so equal a^2 -2ab +b^2 = a*a -2ab +b*b

yes ?

Answer 11

yes i get that

Answer 12

can you make it coresponding with what i have wrote there firstly ?

Answer 13

no i dont get how to solve it thats why i am asking for someone to draw it on the board so i can get whats going on

Answer 14

(c-3d)^2 -4 =

Answer 15

this is clearly ?

Answer 16

and now you can using the formula a^2 -b^2 =(a-b)(a+b)

Answer 17

thats just it i dont know how to put it in the (a-b)(a+b) form

Answer 18

so from c^2 -6cd +9d^2 we have got (c-3d)^2 what will be in this last point a and 4=2*2 so hence 2^2 will be b^2 and now you just need to put these inside formula

Answer 19

ok ?

Answer 20

(c-3d)^2 will be a^2

Answer 21

than there we will get (c-3d)^2 -4=(c-3d-2)(c-3d+2)