Alab technician mixed a 590 ml solution of water and alcohol. if 3% of the solution is alcohol, how many milliliters of alcohol were used, and how many milliliters of water were used?

step-by-step explanation:

i need to answer questions so i dont know but i think its the first one because it goes up but a consent rate

hello from mrbilldoesmath!

answer:

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

discussion:

the trick is to recognize that 343 = 7^3 and 216 = 6^3 and, in general,

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

in our case

343x^3+216y^3   =   (7x)^3 + (6y)^3

so take a = 7x and b = 6y in the above equation to get the answer.

you,

mrb