Witch of the following expression equivalent to 12x + 2

Choices:

A: (12x + 2) x 0
B: (12x + 2) + 1
C: (12x • 0) + (2 • 0)
D: (12x + 2) • 1

Please help I need it for today!

answer: ouch. thats difficult

step-by-step explanation:

answer: c

(2, -4)

goes 7 to the

(9, 4)

easy

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)