Evaluate the expression if a=-2, b=5, c=--4 and d=6,b(b)-2bc+c(c)?
821068
This is super easy.  Just plug in the values.  Remember (--4) = 4.  Two negatives become a positive.\n\nThe steps:\n\n5(5) - 2(5)(4) + 4(4)= \n25 - 2(20) +16= \n25-40+16= \n-15 + 16 = 1\n\nThe final answer is 1.  Now to double check, plug 1 back into your original equation.  Which means put a 1 whereever you see a letter.  \n\n1(1) - 2(1)(1) + 1= \n1 - 2 +1 = 1
550482
-2a(b+2)-6b=\nor\n-2(ab+2a+3b)
762985
(b-4)/(b-4)(b+4) simplifies to 1/(b+4)\nrestrict denominator...bcannot equal 4 or -4
887284
Subtracting, and adding a negative #, are the same thing. So this equation can also be expressed as:\n(-5x + 6) - (-2x + -7)\nThe negative after the last part of the function, effectively reverses the negatives inside the parenthesis:\n(-5x +6) + (2x + 7)\nFrom there, since this is just addition and subtraction, you can just remove the parenthesis:\n-5x + 6 +2x + 7\nCombine like terms and you've got:\n13 - 3x
918458
Look at it this way:\n(-1)*(6x + 6x) = (-1)*(12x) = -12x
743513
it's A\n\n4st+6t -10s-15\n2t(2s+3) -5(2s+3)    \n(I factored out the negative for both numbers in the -10s-15)\n\n(2t-5)(2s+3) or (2s+3)(2t-5)
641733
[-b +/-  sqrt(b^2-4ac)]/(2a)
898178
-25\n-5*(-3+8) = -5*(5) = -25
350975
-2 * x -2 * 6 > x +4\n-2x - 12 > x + 4\n-2x - 12 + 12 > x + 4 + 12\n-x - 2x > x - x + 16\n-3x > 16\n-3/-3x > 16/-3 flip the greater than less than for the negative\n\nx< -16/3\nx<-5.3333
590233
Hint:\nDo a simple substitution u = x-5\nWhich means x = u + 5\n\nYou should get\n\n(2/5)(x-5)^(5/2) + 2(x-5)^(3/2) + C
692175
( x^2 -x +2 )( x^2 + x + 2 )\n\n=>\n a= -1\n b= +2\n c= +1\n d= +2
695355
-5 -2(x+3) + 7x\n= -5 -2x -6 + 7x\n= -11 -2x + 7x\n= 5x - 11
1139003
(n/(n - 3)) + (5/(2n - 6))\n(n/(n - 3)) + (5/(2(n - 3)))\nMultiply everything by 2(n - 3)\n(2n + 5)/(2n - 6)
771168
1= B\n2= A\n3= D\n4= D\n5= D\n6= C
85542
A(5) = 1/2 + (5-1)(1/4)\nA(5) = 1/2 + (4)(1/4)\nA(5) = 1/2 + 1\nA(5) = 1 1/2
406322
q*(x,y,z)X(a,b,c) = q(yc - zb, az - xc, xb - ya). In your case, B is (0, 0, -1.2) so you have -5nC(-1.2y, 1.2x, 0) = (-3.6*10^(-7), 7.6*10^(-7), 0) which is a trivial system of equations.
889891
~..-8,-6,-4,-2,0,2,4,6,8