:confused:I am having trouble with an algebraic problem which I have tried doing for a long time, now it is very close to the due date and I still don't have the answer... :( The question is: If x^2 + y^2 + z^2 + 10x + 20y - 30z + 350 = 0, find the value of (x-y-z)^5 If anyone is smart enough to...

Two more then a number x

The Brickhouse I am building is 6 feet longer than it is wide. Write an algebraic expression for the perimeter if the length is expressed as x. If x equals 20, what is the perimeter?

Hi guys! Right, I've got this maths question, and it's the first time in ages I've been honestly stumped as to where to even start! It's like this; x(squared) − x = 0 now I know that to get rid of the x squared I need to square root it, and thus both sides... but is that where I start? ...

I'm working on a Thermodynamics question on Work Done during compression. The book gives proof for a formula but I can't seem to follow one step of it. We are working with pressure,volume and temperature at different stages of compression. M is mass and R is the gas constant basic formulas...