Tuesday

September 23, 2014

September 23, 2014

Posted by **dunstan** on Tuesday, June 22, 2010 at 6:02pm.

432(140-x)^3 = 60480-432x^3

or do i have to expand it like this

432(140-x)(140-x)(140-x)

- Math -
**bobpursley**, Tuesday, June 22, 2010 at 7:03pmThe last way is correct.

- Math -
**Reiny**, Tuesday, June 22, 2010 at 7:05pmYou will have to expand it, your first line is incorrect.

test it with numbers...

e.g.

3(2^3) = 3(2)(2)(2) = 3(8) = 24

the way you wanted to do it would be

(6)^3 or 216

**Answer this Question**

**Related Questions**

nuclear physics - A researcher wishes to extract 140 La from 140 Ba. She obtains...

Physics Cont'd - Quidditch - For time t = d/v 140/20 t= 7 0 = 1/2(-10)(7^2)+(15...

algebra - add the following - 4/7 + [ -7/20] 7*20= 140 so -60/140 + - 49/140= 11...

algebra - y varies directly with x If x=52 when y=130, find x when y=140 i got ...

Math - How would I solve this Equation? DB = 10log(I/Io) DB = 10log (140 Io/Io) ...

Please help Math - Determine the correct formula for the measures of all angles ...

more CHEM proofreading - for this question A sample of air has a volume of 140.0...

Plutonium decay - The amount A(gms) of radioactive plutonium remaining in a 20gm...

math - calculate the measures of the point angles of the star-shaped polygons ...

maths - Find the largest possible value of sqrt[(x-20)(y-x)] + sqrt[(140-y)(20-x...