Solve the equation.
1) 2(1.5n + 4) -6n= -7

2) 5s - 2 + 3 (s - 11) = 5

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

d. 145*2 is 290 than the total angle is 360 then minus 290 then divide by two

because that’s us why