Matt has started a car washing business to save money for college. Each week, he washes 3 more
cars than he did the week before. Matt started by
washing 6 cars his first week in business.

Write a explicit formula that can be used to find the number of
cars he washed on any given week.

A = 6+3n
B = 6(3n-1)
C = 6+3(n-1)
D = 3+6(n-1)

answer: 414,377,008

step-by-step explanation:

just multiply it

the first one

step-by-step explanation:

just id the test.

answer:

a=9

step-by-step explanation: lmk if you need a 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)