Please help!! If ED=5, then determine the length of AB

AB equals 25

Step-by-step explanation:

1( you take ED and the 5 and say of 5.

2( then you count all the letters that stand for numbers and count them.

3) after you count them how many ever there are then you take that number which was 5 too.

4(after you find that number which is number 5 you multipliy 5 and 5.

5(after you multipliy then you should get 25 because 5x5 is 25.

And there you go thats the answer step by step.

any options?

step-by-step explanation:

hello from mrbilldoesmath!

answer:   (7x + 6y) ( 49x^2 - 42xy + 36y^2)

discussion:

in general, the factorization of a^3 + b^3 is

a^3 + b^ 3 = (a + b) ( a^2 - ab + b^2)

in our case note that 343 = 7^3 and 216 = 6^3 so the equation becomes:

343x^3 + 216y^3 = (7x)^3 + (6y)^3

if you think of a (above) as 7x and b as 6y the factorization becomes

343x^3 + 216y^3 =

((7x + 6y) (   (7x)^2 - 7x*6y + (6y)^2)   =

(7x + 6y) ( 49x^2 - 42xy + 36y^2)

you,

mrb

(a + b) (a^2 - a b + b^2)