What is the average of the expressions 5x-2, 3x+1, 2x, and -2x+5?
488956
Similar to your other question, add them up and divide by the number of expressions.  The shortcut is to take the average of the x-terms and the average of the numbers.\n\nx-terms:\n(5x + 3x + 2x -2x)/4 = 8x/4 = 2x\n\nnumbers:\n(-2 + 1 + 0 + 5)/4 = 4/4 = 1\n\nSo the answer is:\n2x + 1\n\nP.S. Don't forget to add 0 for the 2x equation... and don't accidentally divide by 3... you must divide by 4.
52440
[x+1]/x^2+10x+5=2x/x^2+x-2\n9x+7=[x+1]/x^2\n9x^3+7x^2=x+1\n9x^3+7x^2-x=1
831044
2x² - 10a\n\n2a(a - 5)\n\nThe answer is 2a(a - 5)\n\n- - - - - - - -s-
733063
5x^2-35x+3x-21\n5x^2-32x-21
485118
2x = 3x+11\n2x-3x = 11\n-1x = 11\nx = -11
545883
(a^2  - 5) * (a^2  - 2)
988435
2x-5=6+4x\n2x-5+5=5+6+4x\n2x=11+4x\n2x-4x=11+4x-4x\n-2x=11\n-2x/-2=11/-2\nx=-5.5
1060834
(5x+2)/3 -(2x+4)/6 = -4/3\n\nMultiply everything by 6:\n\n10x + 4 - (2x+4) = -8\n10x + 4 - 2x - 4 = -8\n8x = -8\nx = -1
804510
3x^2+6x+5x+10\n(3x+5)(x+2)
137368
2x+3 = 5\nsubtract 3 from both sides\n2x+3-3 = 5-3\n2x = 2\nDivide both sides by 2\nx=2/2\nx=1
895527
2x^2-8x+3x-12\n2x(x-4)+3(x-4)\n2x+3 = 0 or x-4= 0\nx = -3/2 or x = 4\n\n2x^2+10x-72\n2x^2+18x-8x-72\n2x(x+9)-8(x+9)\nx = 4 or x = -9\n\nx^2+6x-x-6\nx-1 = 0 or x+6 = 0\nx = 1 or x = -6
846363
3x² + 6 + 10 - (3x² - 8x - 5)\n\n3x² + 6x + 10 - 3x² + 8x + 5\n\n3x² - 3x² + 6x + 8x + 10 + 5\n\n0 + 14x + 15\n\n14x + 15\n\nThe answer is 14x + 15\n\n- - - - - - -s-
869535
5x+8+3x-5=6x-3\n8x+3=6x-3 (combine like terms)\n2x=-6 (subtract 6x, subtract 3)\nx=-3 (divide by 2)
896236
First expand the brackets, collect like terms and simplify.\n\n(-2x^2 + 5x - 1) - (3x^2 - 4x - 6)\n= -2x^2 + 5x - 1 - 3x^2 + 4x + 6\n= (-2 - 3)x^2 + (5 + 4)x + (-1 + 6)\n= -5x^2 + 9x + 5
695355
-5 -2(x+3) + 7x\n= -5 -2x -6 + 7x\n= -11 -2x + 7x\n= 5x - 11
695176
6x^2-3x-4x+2\n3x(2x-1)-2(2x-1)\n(2x-1)(3x-2)
18182
2x^2 + 5x + 20x + 50\n2x^2 + 25x + 50