SOLUTION: I am having trouble with multiplying,dividing and simplifing these problems. I can get them so far then I get lost. I have no trouble when I am dealing with smaller numbers but the

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Question 318975: I am having trouble with multiplying,dividing and simplifing these problems. I can get them so far then I get lost. I have no trouble when I am dealing with smaller numbers but the larger numbers and multiple steps to get the answer gives me trouble. Can you help me out.? 1. 10y^/9v^2*81v^4/100y;2.z^2-z-6/z^2-4z+4*z-2/z-3; y^2-81/y divided by y-9/y+6; 4.x^2-4/25x+50 divided by x-2/10;5.r^2+62/r^2+3r-18 divided by r/r+3
Answer by mananth(16946) (Show Source):
You can put this solution on YOUR website!
1. 10y^/9v^2*81v^4/100y;
10y^2+81v^4 / 9v^2*100y
y/10 *9v^2
9v^2y/10
..
2.z^2-z-6/z^2-4z+4*z-2/z-3;
(z-3)(z+2)/(z-2)^2 *z-2 /z-3
(z-3)(z+2)(z-2)/(z-2)^2*(z-3)
=(z+2)/z-2)
..
y^2-81/y divided by y-9/y+6;
(y+9)(y-9) /(y-9)/(y+6)
(y+9)/(y+6)
4.x^2-4/25x+50 divided by x-2/10
(x+2)(x-2)/(x-2)/10
(x+2)/10
5.r^2+62/r^2+3r-18 divided by r/r+3
r^2+62/(r+6)(r-3) *(r+3)/r