You can review the basic exponent laws here : http://www.purplemath.com/modules/exponent.htm But basically, when you have (x/y)^n, you can write this as (x)^n/(y)^n. If you do that, and remember what 1^n equals, you may figure out how to rearrange the equation in a form that makes it easier for you ...
You haven't shown what you have tried yet, so it's hard to tell exactly what you are "stuck" on. One suggestion, I see in both cases there are common factors that you can factor out of each equation and re-write them, so that the various factors will be lower powers, and easier to work wit...
I have to do summer work for school and I can not figure out this problem of factoring! -4p^2 + 25q^2 What have you tried so far? Do you notice any patterns in this equation that you could use? What are some factoring rules you do know? Have you seen these particular rules before : http://www.purpl...
x²(x + 2) - x(x + 2) - 12(x + 2) If you are still confused about how to factor this the way it is now, how about this: x²A - xA - 12A Can you factor this? Notice in the first equation, you could let A = x +2, and maybe if you rewrite the polynomial temporarily in the second form you can simplify it...
It looks like you are trying to use the quadratic formula. I would suggest first you review it here: http://www.purplemath.com/modules/solvquad4.htm Next, double check the formula, and what you are using as values for A, B, and C. It usually helps to actually write down these values at the top of yo...
Is this an absolute value problem? If so the last line of the absolute value symbol was left out of your original problem. I'm going to assume this is supposed to be |2+3(-4)| First, just solve the inside part of the absolute value, i.e., 2+3(-4) Do you know how to solve this? Then remember the defi...
Hello, I have a quick question. why does -3(-3) = +3 how is this solved? thx. Is this supposed to be a multiplication problem? I.e, are you multiplying negative 3 by itself? If so, then your equation is not correct. If you just ignore the minus sign for the moment, what is 3 times 3? It's not 3! Wh...
I was wondering if I did this part of my homework correctly. Thanks your input would be greatly appreciated. :) State the domain of the following: :) g(x)=(2x+1)/(x-7) domain= all numbers x different form 0 e) m(x)=3/(x^2+7) domain = all numbers x different from 0 Well, as they say, you're "ge...