If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 4x2 + -81x + 16 = 0 Reorder the terms: 16 + -81x + 4x2 = 0 Solving 16 + -81x + 4x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 4 the coefficient of the squared term: Divide each side by '4'. 4 + -20.25x + x2 = 0 Move the constant term to the right: Add '-4' to each side of the equation. 4 + -20.25x + -4 + x2 = 0 + -4 Reorder the terms: 4 + -4 + -20.25x + x2 = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -20.25x + x2 = 0 + -4 -20.25x + x2 = 0 + -4 Combine like terms: 0 + -4 = -4 -20.25x + x2 = -4 The x term is -20.25x. Take half its coefficient (-10.125). Square it (102.515625) and add it to both sides. Add '102.515625' to each side of the equation. -20.25x + 102.515625 + x2 = -4 + 102.515625 Reorder the terms: 102.515625 + -20.25x + x2 = -4 + 102.515625 Combine like terms: -4 + 102.515625 = 98.515625 102.515625 + -20.25x + x2 = 98.515625 Factor a perfect square on the left side: (x + -10.125)(x + -10.125) = 98.515625 Calculate the square root of the right side: 9.925503766 Break this problem into two subproblems by setting (x + -10.125) equal to 9.925503766 and -9.925503766.Subproblem 1
x + -10.125 = 9.925503766 Simplifying x + -10.125 = 9.925503766 Reorder the terms: -10.125 + x = 9.925503766 Solving -10.125 + x = 9.925503766 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '10.125' to each side of the equation. -10.125 + 10.125 + x = 9.925503766 + 10.125 Combine like terms: -10.125 + 10.125 = 0.000 0.000 + x = 9.925503766 + 10.125 x = 9.925503766 + 10.125 Combine like terms: 9.925503766 + 10.125 = 20.050503766 x = 20.050503766 Simplifying x = 20.050503766Subproblem 2
x + -10.125 = -9.925503766 Simplifying x + -10.125 = -9.925503766 Reorder the terms: -10.125 + x = -9.925503766 Solving -10.125 + x = -9.925503766 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '10.125' to each side of the equation. -10.125 + 10.125 + x = -9.925503766 + 10.125 Combine like terms: -10.125 + 10.125 = 0.000 0.000 + x = -9.925503766 + 10.125 x = -9.925503766 + 10.125 Combine like terms: -9.925503766 + 10.125 = 0.199496234 x = 0.199496234 Simplifying x = 0.199496234Solution
The solution to the problem is based on the solutions from the subproblems. x = {20.050503766, 0.199496234}
| 2/3x+1/6=9 | | 12d+2+-3d=5 | | x-(1/4)x=75 | | 4((25*-12)+20)=20((3*-12)+20) | | 3x+23=-19 | | -7/3x-7/2=6x-5/2 | | 8x-2=9x+3 | | 9r-3(r+5)=5(4r-6)-27 | | 1/2+w=8-3w/2 | | 3x^2+4x^2=1225 | | 19+7n=7+10n | | z+12/3=-1 | | -7/2x+2=-1/2x-5/3 | | 4((25*8)+20)=20((3*8)+20) | | 2(2x+5)=5x-20 | | 4.5W=5.1-30 | | (4a/a-3)-(12/a-3) | | 2(2x+5)=5x-10 | | x/5-14/15=x/3 | | 120=2w+2l+8 | | x-(1/4)x=20 | | -3x-x^2+4=0 | | 1/4+1/2x=5/4 | | 5x/6+2=7x/10 | | 4(x+2)+3(x+5)=7x+23 | | 5x-22=-2x+28 | | 11=1+5m | | c/-4-3=5 | | x/3+3=x/4 | | .375b-.25b=3 | | 10x+20-x=-7 | | 1/2(8-2h)=h |