If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 20 = -85.6x2 + 160x + -9.35 Reorder the terms: 20 = -9.35 + 160x + -85.6x2 Solving 20 = -9.35 + 160x + -85.6x2 Solving for variable 'x'. Combine like terms: 20 + 9.35 = 29.35 29.35 + -160x + 85.6x2 = -9.35 + 160x + -85.6x2 + 9.35 + -160x + 85.6x2 Reorder the terms: 29.35 + -160x + 85.6x2 = -9.35 + 9.35 + 160x + -160x + -85.6x2 + 85.6x2 Combine like terms: -9.35 + 9.35 = 0.00 29.35 + -160x + 85.6x2 = 0.00 + 160x + -160x + -85.6x2 + 85.6x2 29.35 + -160x + 85.6x2 = 160x + -160x + -85.6x2 + 85.6x2 Combine like terms: 160x + -160x = 0 29.35 + -160x + 85.6x2 = 0 + -85.6x2 + 85.6x2 29.35 + -160x + 85.6x2 = -85.6x2 + 85.6x2 Combine like terms: -85.6x2 + 85.6x2 = 0.0 29.35 + -160x + 85.6x2 = 0.0 Begin completing the square. Divide all terms by 85.6 the coefficient of the squared term: Divide each side by '85.6'. 0.3428738318 + -1.869158879x + x2 = 0 Move the constant term to the right: Add '-0.3428738318' to each side of the equation. 0.3428738318 + -1.869158879x + -0.3428738318 + x2 = 0 + -0.3428738318 Reorder the terms: 0.3428738318 + -0.3428738318 + -1.869158879x + x2 = 0 + -0.3428738318 Combine like terms: 0.3428738318 + -0.3428738318 = 0.0000000000 0.0000000000 + -1.869158879x + x2 = 0 + -0.3428738318 -1.869158879x + x2 = 0 + -0.3428738318 Combine like terms: 0 + -0.3428738318 = -0.3428738318 -1.869158879x + x2 = -0.3428738318 The x term is -1.869158879x. Take half its coefficient (-0.9345794395). Square it (0.8734387287) and add it to both sides. Add '0.8734387287' to each side of the equation. -1.869158879x + 0.8734387287 + x2 = -0.3428738318 + 0.8734387287 Reorder the terms: 0.8734387287 + -1.869158879x + x2 = -0.3428738318 + 0.8734387287 Combine like terms: -0.3428738318 + 0.8734387287 = 0.5305648969 0.8734387287 + -1.869158879x + x2 = 0.5305648969 Factor a perfect square on the left side: (x + -0.9345794395)(x + -0.9345794395) = 0.5305648969 Calculate the square root of the right side: 0.728398858 Break this problem into two subproblems by setting (x + -0.9345794395) equal to 0.728398858 and -0.728398858.Subproblem 1
x + -0.9345794395 = 0.728398858 Simplifying x + -0.9345794395 = 0.728398858 Reorder the terms: -0.9345794395 + x = 0.728398858 Solving -0.9345794395 + x = 0.728398858 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.9345794395' to each side of the equation. -0.9345794395 + 0.9345794395 + x = 0.728398858 + 0.9345794395 Combine like terms: -0.9345794395 + 0.9345794395 = 0.0000000000 0.0000000000 + x = 0.728398858 + 0.9345794395 x = 0.728398858 + 0.9345794395 Combine like terms: 0.728398858 + 0.9345794395 = 1.6629782975 x = 1.6629782975 Simplifying x = 1.6629782975Subproblem 2
x + -0.9345794395 = -0.728398858 Simplifying x + -0.9345794395 = -0.728398858 Reorder the terms: -0.9345794395 + x = -0.728398858 Solving -0.9345794395 + x = -0.728398858 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.9345794395' to each side of the equation. -0.9345794395 + 0.9345794395 + x = -0.728398858 + 0.9345794395 Combine like terms: -0.9345794395 + 0.9345794395 = 0.0000000000 0.0000000000 + x = -0.728398858 + 0.9345794395 x = -0.728398858 + 0.9345794395 Combine like terms: -0.728398858 + 0.9345794395 = 0.2061805815 x = 0.2061805815 Simplifying x = 0.2061805815Solution
The solution to the problem is based on the solutions from the subproblems. x = {1.6629782975, 0.2061805815}
| 40=-85.6x^2+160x-9.35 | | 7x-56=5x-10 | | 60=-85.6x^2+160x-9.35 | | y=-85.6x^2+160x-9.35 | | 4x^2-20=11 | | 9/x=27/45 | | 3/10=6/x-5 | | 6/10-1/3= | | x+5=sqrt(7-x) | | 8a^6-40a^5-112a^44= | | 4x^2-20-11=0 | | 73.6/c^2=.24 | | -5x=3t | | (-6(a^2+2ab+b^2))(-7(a^3+2a^2b+ab^2+a^2b+2ab^2+b^3))=0 | | cos15/sin75 | | 5(2u+1)=5(4u+3) | | 3+35x=5x+19 | | A^4-16a^2=0 | | 36m^2n^2+36m^2n^2+36m^4= | | 0.4x-0.36=0.28x | | 4(2.3x+7)=1.2x+52 | | 8(2x-4)=21 | | 6v^2+25v+11=8(v+7) | | x^2-2x-2.4=0 | | 3*678*987*3*1= | | -6x+3=3x-16 | | 0.4(x+0.2)-0.6(3x-5)=0.28 | | 3x-6=-14 | | 7(4x+3)=65 | | (8-x)(7-y)= | | x^2-12*x=-36 | | 16x^2-8x=1 |