If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying -16x2 + 66x + 13 = 0 Reorder the terms: 13 + 66x + -16x2 = 0 Solving 13 + 66x + -16x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by -16 the coefficient of the squared term: Divide each side by '-16'. -0.8125 + -4.125x + x2 = 0 Move the constant term to the right: Add '0.8125' to each side of the equation. -0.8125 + -4.125x + 0.8125 + x2 = 0 + 0.8125 Reorder the terms: -0.8125 + 0.8125 + -4.125x + x2 = 0 + 0.8125 Combine like terms: -0.8125 + 0.8125 = 0.0000 0.0000 + -4.125x + x2 = 0 + 0.8125 -4.125x + x2 = 0 + 0.8125 Combine like terms: 0 + 0.8125 = 0.8125 -4.125x + x2 = 0.8125 The x term is -4.125x. Take half its coefficient (-2.0625). Square it (4.25390625) and add it to both sides. Add '4.25390625' to each side of the equation. -4.125x + 4.25390625 + x2 = 0.8125 + 4.25390625 Reorder the terms: 4.25390625 + -4.125x + x2 = 0.8125 + 4.25390625 Combine like terms: 0.8125 + 4.25390625 = 5.06640625 4.25390625 + -4.125x + x2 = 5.06640625 Factor a perfect square on the left side: (x + -2.0625)(x + -2.0625) = 5.06640625 Calculate the square root of the right side: 2.250867888 Break this problem into two subproblems by setting (x + -2.0625) equal to 2.250867888 and -2.250867888.Subproblem 1
x + -2.0625 = 2.250867888 Simplifying x + -2.0625 = 2.250867888 Reorder the terms: -2.0625 + x = 2.250867888 Solving -2.0625 + x = 2.250867888 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.0625' to each side of the equation. -2.0625 + 2.0625 + x = 2.250867888 + 2.0625 Combine like terms: -2.0625 + 2.0625 = 0.0000 0.0000 + x = 2.250867888 + 2.0625 x = 2.250867888 + 2.0625 Combine like terms: 2.250867888 + 2.0625 = 4.313367888 x = 4.313367888 Simplifying x = 4.313367888Subproblem 2
x + -2.0625 = -2.250867888 Simplifying x + -2.0625 = -2.250867888 Reorder the terms: -2.0625 + x = -2.250867888 Solving -2.0625 + x = -2.250867888 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.0625' to each side of the equation. -2.0625 + 2.0625 + x = -2.250867888 + 2.0625 Combine like terms: -2.0625 + 2.0625 = 0.0000 0.0000 + x = -2.250867888 + 2.0625 x = -2.250867888 + 2.0625 Combine like terms: -2.250867888 + 2.0625 = -0.188367888 x = -0.188367888 Simplifying x = -0.188367888Solution
The solution to the problem is based on the solutions from the subproblems. x = {4.313367888, -0.188367888}
| 13-3p=-8p-15-7 | | 2x^4-2x-1=0 | | (6x-7)-(8x+5)=0 | | 8x^2-43x-18=0 | | 4(7x+3)-6=28x+6 | | (2t^3-3t^2+5t)-(6t^3+3t^2-5t+8)= | | t=3c-2d | | 4n-19n+12n=18 | | 5/6x-1=-7 | | -4.5y=-11.7 | | 2x+3y=10x+11 | | 3x-16-5x=40 | | y=-0.4x-2.1 | | 6*x=1500 | | 16s-4s-12s+3s=15 | | 0.66x+1=0.50 | | ln(5x+1)=ln(x+11) | | 9x=-11.7 | | 65x-6x=21x+23 | | 6x+6=6(x-5) | | 17h-13h-4h+2h=14 | | 7x-15-10x=15 | | 8x-5=32x-13 | | 11k-9+2k-3= | | 2b+8=2 | | X-8/3=1-x8 | | -1/2•-7=-11 | | -6x-36=-7(1+5x) | | 8b-a-b+a= | | y=1.1 | | (m-7)(m-7)=49 | | Y-3=6(x-6) |