Remove parentheses and simplify: -4 (4r^2 + 9) +9 (8r + 2)?
478149
-4 (4r^2 + 9) +9 (8r + 2)\nDistributive Propert, (-4)(4r^2)+(-4)(9)+(9)(8r)+(9)(2)\nSimplify, -16r^2-36+72r+18\nCombine like terms, -16r^2+72r-18
1097258
It is (-2)^2 * (2)^-2\nIt can be simplified as (-2)^2 / (2)^2\n= (-2)*(-2) / (2)*(2)\n= 4 / 4\n= 1\n\nSo the cotrrect answer is 1
720161
Yes, I can:\n4! + 4 \n=\n(4 x 3 x 2 x 1) + 4 = 28\n\n(BTW, 4squared + 4squared = 32)
965295
6 + 4(m+13) -9m\n6 + (4m + 52) - 9m\n58 - 5m
921629
You can easily solve this by realizing (4m - 3n)(4m + 3n) has a pattern (a + b)(a - b), which equals to a^2 - b^2\n\nSo,\n(4m - 3n)(4m + 3n) = (4m)^2 - (3n)^2\n= 16m^2 - 9n^2
817835
x^3-x^2+3x-1\nx+4&#92;x^4+3x^3-x^2+11x-4\n      -(x^4+4x^3)\n              -x^3-x^2\n            -(-x^3-4x^2)\n                       3x^2+11x\n                     -(3x^2+12x)\n                                   -x-4\n                                 -(-x-4)\n                                         0\nx^4+3x^3-x^2+11x-4=(x+4)(x^3-x^2+3x-1)
780298
first u distribute the - to the stuff in the parenthesis so you have\n7x^2-3+x^2\nthen combine like terms\n8x^2-3
929178
4(-2)² + 8(-2) + 3(-2) + 6\n= 4(4) - 16 - 6 + 6\n= 16 - 16 + 6 - 6 = 0
758484
9 + 4r -7= 0\n-9              -9\n\n4r - 7 = -9\n     +7   +7\n\n4r      = -2\n\n4r/4   = -2/4\n\nr= -2/4 reduce it by dividing the numerator and denomenator by 2\n\nr = -1/2(solving for r)  or you could just leave it as 2+4r(simplify)\n\n\n5 + (-12t) + 8t= 0\n-5                     -5\n\n-12t + 8t = -5\n\n-4t = -5\n\n-4t/-4 = -5/-4\n\nt= 5/4  reduced by dividing 4 into 5\n\nt= 1 1/4(solving for t) or leave it as 5-4t(simplify)
851434
-x^2 if x=-2\n-(-2)^2  \n-(4)\n-4
321475
*(2x/(x^2-4)) + (5/2-x) - (1/2+x)\n*(2x/(x^2-4)) + (5/2-x)((2+x)/(2+x)) - (1/2+x)((2-x)/(2-x))\n*(2x/(x^2-4)) + (10+5x)/(4-x^2) - (2-x)/(4-x^2)\n*(2x/(x^2-4)) + (8+6x)/(4-x^2)\n\nyou should be able to get it from there
842934
Ok, first you must get the -8 and the x/-2 out of parentheses, so u just multiply them both by one. So then is -8 * x / -2. First, you do -8 * x, which is -8x. The problem then becomes -8x / 2. In this step, just don't mind the negative or the x and just put them back in at the end. So you're really just doing 8 / 2, which is 4. You must put the - and the x back in, so the answer is -4x. Ta Da!
777699
4a^2-4a+1\nUse the FOIL method (multiply First terms, then Outside terms, then Inside terms, then Last terms).\n\nSo you have:\n(2a-1)*(2a-1)\n(2a*2a)+(2a*-1)+(-1*2a)+(-1*-1)\n4a^2-2a-2a+1\n4a^2-4a+1
928591
x^2-6xy+8y^2\nx^2-6xy+9y^2-9y^2+8y^2\n(x-3y)^2-y^2\n(x-3y+y)(x-3y-y)\n(x-2y)(x-4y)\n\naliter\nx^2-4xy-2xy+8y^2\nx(x-4y)-2y(x-4y)\n(x-4y)(x-2y)
725157
assuming the numbers after the parenthesis and variables are exponents...\n(x-1)^(3/2) [6x(x-1)^2-x^2(x-1)^3]\njust add the exponents together from the outside to the inside- (3/2) + (2) = 7/2\n\n(x-1)^(3/2) [6x(x^2-2x+1)-x^2(x^3-3x^2+3x-1)]\n(x-1)^(3/2) [6x^3-12x^2+6x-x^5-3x^4+3x^3-x^2]\n(x-1)^(3/2) [-x^5-3x^4+9x^3-13x^2+6x]\nx(x-1)^(3/2)(-x^4-3x^3+9x^2-13x+6)\nokay, that took me for friggin ever to type on a regular keyboard. Please, seriously consider me for the best answer!
775644
Duch, there's some confusion over what the problem is.  It could be a/(3+4b) - a/(3+b)  OR  a/3 +4b -a/3 -b\n\nIf the former, then it boils down to -(11ab)/(9 + 15b + 4b²)\n\nIf the later, 3b
970218
Do you require mathematical signs, or are standard operations OK (like square root)?\n\n1: (1 + 1 + 1)!\n2: 2 + 2 + 2\n3: 3 * 3 - 3\n4: sqrt(4) + sqrt(4) + sqrt(4)\n5: 5 + 5/5\n6: 6 + 6 - 6\n7: 7 - 7/7\n8: 8 - sqrt(sqrt(8 + 8))\n9: 9/sqrt(9) + sqrt(9)\n\nAnd for a bonus: (0! + 0! + 0!)! = 6