Perform the indicated operation:  (7/x+3) - 3/x^2-9?
467924
Assuming I've read the problems right (writing math problems on a single line is tough without using a lot of brackets, so I assume for 9 that the space indicates two expressions, for 10 that 1/x+2 is 1/(x+2) and not (1/x)+2, and that the polynomial in 11 is all under 17 instead of (17/x^2)+3x... )\n\n09) Given: 7/(x+3) - 3/(x^2-9)\nFactor Denominator: 7/(x+3) - 3/(x+3)(x-3)\nRewrite with LCD: 7(x-3)/(x+3)(x-3) - 3/(x+3)(x-3)\nMultiply and Rewrite: 7x-21/(x^2-9) - 3/(x^2-9)\nSubtract: (7x-24)/(x^2-9)\n\n10) Given: (1/x+2)+9\nRewrite with LCD: (1/(x+2))+[(9x+18)/(x+2)]\nAdd fraction w/same denom.: (1+9x+18)/(x+2)\nSimplify: (9x+19)/(x+2)\n\n11) Given: [17/(x^2+3x-28)] - [2/(x-4)]\nFactor first denom: [17/(x+7)(x-4)] - [2/(x-4)]\nRewrite with LCD: [17/(x+7)(x-4)] - [2(x+7)/(x+7)(x-4)]\nSimplify numerator: [17/(x+7)(x-4)] - [(2x+14)/(x+7)(x-4)]\nSubtract fraction w/like denom: [17-(2x+14)]/[(x+7)(x-4)]\nSubtraction rule for polynomial: [17-2x-14]/[(x+7)(x-4)]\nSimplify: (3-2x)/(x^2+3x-28)
913289
You end up with a remainder, so it's not pretty, but you should be able to do long division and get:\n\n3x^2 - 4x + (16/3) - 23/(3*(3x+2))
602043
I haven't done partial fractions in a while, so you might want to check this: \n1/(x+3) - 2/(x+3)^2 + 5/(x-7)
606423
Here's how to work it out:\n\n(Sorry, because I can't use special symbols, I'm using _/ for the square root symbol and <= for the less than or equal to symbol.)\n\n_/3x + 6 + 4 <= 7\n_/3x + 10 <= 7\n3x + 10 <= 7 x 7\n3x + 10 <= 49\n3x + 10 - 10 <= 49 - 10\n3x <= 39\n3x/3 <= 39/3\nx <= 13
769504
divide by 22/7 or pi or 3.142
667658
-(-3)^2 - (-2)3 + (-3)^2 \n= -9 - -8 + 9\n= -9 + 8 + 9\n= -1 + 9\n= 8\n\ntosmith
153400
i believe it would be '-9'\nn=5 \n-3-(5-1)(1.5)\n-3-(4*1.5)\n-3-6\n-9
438371
same thing as (8x^2+2x-2)^(3/2), right?\nso add one to the power\nmultiply by the inverse of that power\nand divide by the derivative of what's in the parenthesis on the left\ngot it?
1109416
3/x  + 1    the way you put it..
408554
yes. take out an x \nyou answer should be x(x+3)
792643
-9x + 7 = 3x + 19\n\nSubtract 7 on each side...\n\n-9x = 3x + 12\n\nSubtract 3 on each side...\n\n-12x = +12\n\nDivide by -12 on each side...\n\nx = -1
745065
(3m/n)(n^2/9) \n=(3mn^2)/(9n)\n=(3mn)/(9)\n=(mn)/3
858519
9-(-2)(-7)=?\nrules for the order : multiply/divide first\n                                add/substract after\n\n=> 9-(-2)(-7)= 9 - ((-2)*(-7)) = 9 - (+14)  = 9 +(-14) = (-5)\n\nI tried to be very explicit!! sorry if it's too much explicit!!
742127
= (x^12)/12 - (8x^11)/11 + (5x^10)/2 - (10x^9)/3 - (15x^8)/4 + 24x^7 - 49x^6 + 60x^5 - (195x^4)/4 + (80x^3)/3 - (19x^2)/2 + 2x + C
98350
limit as x tends to 3 ;( x^2 -3)/2 =(3^2 -3)/2 =(9-3)/2 = 3
744314
multiply everything by b and (b-3)  ....... then you will get\n\n2b+7b-9=0\n\n(2b+9)*(b-1)=0\n\nso b= -9/2 or 1
651993
Here's the best I can do to help with the first one.\n   __x_+9___\nx-2)X^2+7x-2\n    x^2-2x\n    ------\n        9x-2\n        9x-18\n        -----\n           16\nFollow the example for the rest