Which methods correctly solve for the variable x in the equation 4/9m=11? Multiply both sides of the equation by 9/4.

Divide both sides of the equation by 9/4.

First, divide by 4 on both sides. Then, multiply by 9 on both sides.

First, multiply by 9 on both sides. Then, divide by 4 on both sides.

Divide both sides of the equation by 4/9.

Multiply both sides of the equation by 9/4. First, divide by 4 on both sides. Then, multiply by 9 on both sides. Divide both sides of the equation by 4/9.

Step-by-step explanation:

unless if u could do my questions, if not i wouldn't want to

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)