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I need some help with this stuff. I get how to do the easy ones, but then they start adding letters and I get way confused. Here are a few problems I'm talking about.
4√z^8
√25x^4y^6
³√(p+q)³
Thanks in advance for the help.
it's more of x²-3x-28=0, the answer in the back of the book says (7,-4) are the answers. We just want to know the process.
And then there's 4x²=3x with the answer (0,-3/4)
so far i got to 4x-3x=0 then i'm stuck. The example we got had the "factor" box thing to get the answer, but it's a different problem.
Okay, thanks so much. This forum has helped me a lot.
So I have another problem. The next set of problems I have it says to simplify. It's the polynomial things agin except they are set up for divison. I'll try to put one on here.
x²+7x-18
_________
x²+4x-45
They look like that, but you don't divide anything.
there's one other problem that I am have trouble with. I can't find a common factor in it.
a²+7a-18
Is there a way to factor it or is it prime?
Thanks a bunch, I tihnk I kind of get it. Is it the same thing when it comes to problems with the polynomials being divided?
You have to look for common variables and coeficients:
7x² - 14x
7x.x - 7*2.x //7x appears in both terms, we can take it out
7x(x-2)19x³ - 38x² //notice that 38 = 19*2
19x².x - 19*2x²
19x² (x-2)8j³k - 4jk³ - 7 //never let multiple variables scare you ; ) Notice that 8 = 4*2
4*2j.k.j² - 4j.k.k² -7 //we find one 'j' and one 'k' in each term. Leave that '7' alone
4j.k(2j²-k²) - 7
I don't really understand how to factor polynomials. It's mostly because we have a teacher who doesn't teach. Can anyone help?
Problems like:
7x²-14x
19x³-38x²
8j³k-4jk³-7
It's like a another language to me.
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