Which expression is equivalent to (8a-3b+7)-(2a+b-4)2
го ва-2b+ 11
О ба-4b+ 3
Ова-2b+ 3
Оба-4b+ 11

answer: 12   they all have at least 28 days

step-by-step explanation: haha

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)

25.3

step-by-step explanation:

1st step

add 3+6

=9

multipy 9*3

=37