If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying -3x2 + 800x + 20 = 0 Reorder the terms: 20 + 800x + -3x2 = 0 Solving 20 + 800x + -3x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by -3 the coefficient of the squared term: Divide each side by '-3'. -6.666666667 + -266.6666667x + x2 = 0 Move the constant term to the right: Add '6.666666667' to each side of the equation. -6.666666667 + -266.6666667x + 6.666666667 + x2 = 0 + 6.666666667 Reorder the terms: -6.666666667 + 6.666666667 + -266.6666667x + x2 = 0 + 6.666666667 Combine like terms: -6.666666667 + 6.666666667 = 0.000000000 0.000000000 + -266.6666667x + x2 = 0 + 6.666666667 -266.6666667x + x2 = 0 + 6.666666667 Combine like terms: 0 + 6.666666667 = 6.666666667 -266.6666667x + x2 = 6.666666667 The x term is -266.6666667x. Take half its coefficient (-133.3333334). Square it (17777.77780) and add it to both sides. Add '17777.77780' to each side of the equation. -266.6666667x + 17777.77780 + x2 = 6.666666667 + 17777.77780 Reorder the terms: 17777.77780 + -266.6666667x + x2 = 6.666666667 + 17777.77780 Combine like terms: 6.666666667 + 17777.77780 = 17784.444466667 17777.77780 + -266.6666667x + x2 = 17784.444466667 Factor a perfect square on the left side: (x + -133.3333334)(x + -133.3333334) = 17784.444466667 Calculate the square root of the right side: 133.358331073 Break this problem into two subproblems by setting (x + -133.3333334) equal to 133.358331073 and -133.358331073.Subproblem 1
x + -133.3333334 = 133.358331073 Simplifying x + -133.3333334 = 133.358331073 Reorder the terms: -133.3333334 + x = 133.358331073 Solving -133.3333334 + x = 133.358331073 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '133.3333334' to each side of the equation. -133.3333334 + 133.3333334 + x = 133.358331073 + 133.3333334 Combine like terms: -133.3333334 + 133.3333334 = 0.0000000 0.0000000 + x = 133.358331073 + 133.3333334 x = 133.358331073 + 133.3333334 Combine like terms: 133.358331073 + 133.3333334 = 266.691664473 x = 266.691664473 Simplifying x = 266.691664473Subproblem 2
x + -133.3333334 = -133.358331073 Simplifying x + -133.3333334 = -133.358331073 Reorder the terms: -133.3333334 + x = -133.358331073 Solving -133.3333334 + x = -133.358331073 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '133.3333334' to each side of the equation. -133.3333334 + 133.3333334 + x = -133.358331073 + 133.3333334 Combine like terms: -133.3333334 + 133.3333334 = 0.0000000 0.0000000 + x = -133.358331073 + 133.3333334 x = -133.358331073 + 133.3333334 Combine like terms: -133.358331073 + 133.3333334 = -0.024997673 x = -0.024997673 Simplifying x = -0.024997673Solution
The solution to the problem is based on the solutions from the subproblems. x = {266.691664473, -0.024997673}
| Log[2](5x-5)=4 | | -6c+10=-7c+1 | | 7-x=25-4x | | 59+84+51+x+x=180 | | -4.3q=13.68-1.9q | | -12x=-75-11y | | y^2+8y+x^2=0 | | 10x-3=19x-1 | | 2000+25t=2000 | | x+.06x=1600 | | 4x^2-17+11=-9x+8 | | -18.4u-8.41=-18.3u-6.49 | | 6w+3=27+2w | | 16+2x=6x+14 | | 3.5x+X=9 | | 10/9x^2-12/10x=0 | | -3x^2+540x-12= | | -18.4u-8.41=-18 | | -8-7p=-8p | | 3(x+7)+4(x+3)= | | -6w-5=-7w-8 | | -2+4j=3j-9 | | k+2=-14-20-k | | -8/32 | | -4g+7g-11=-17+6g | | -8x+64=-16 | | 2x^2+12=-1 | | 9v=10v-2 | | z=6pirexy | | -4y+18=-20-2y | | -4x-47=3(x-4) | | __x8(3/9)=1 |