If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 7x2 + -20x + 9 = 0 Reorder the terms: 9 + -20x + 7x2 = 0 Solving 9 + -20x + 7x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 7 the coefficient of the squared term: Divide each side by '7'. 1.285714286 + -2.857142857x + x2 = 0 Move the constant term to the right: Add '-1.285714286' to each side of the equation. 1.285714286 + -2.857142857x + -1.285714286 + x2 = 0 + -1.285714286 Reorder the terms: 1.285714286 + -1.285714286 + -2.857142857x + x2 = 0 + -1.285714286 Combine like terms: 1.285714286 + -1.285714286 = 0.000000000 0.000000000 + -2.857142857x + x2 = 0 + -1.285714286 -2.857142857x + x2 = 0 + -1.285714286 Combine like terms: 0 + -1.285714286 = -1.285714286 -2.857142857x + x2 = -1.285714286 The x term is -2.857142857x. Take half its coefficient (-1.428571429). Square it (2.040816328) and add it to both sides. Add '2.040816328' to each side of the equation. -2.857142857x + 2.040816328 + x2 = -1.285714286 + 2.040816328 Reorder the terms: 2.040816328 + -2.857142857x + x2 = -1.285714286 + 2.040816328 Combine like terms: -1.285714286 + 2.040816328 = 0.755102042 2.040816328 + -2.857142857x + x2 = 0.755102042 Factor a perfect square on the left side: (x + -1.428571429)(x + -1.428571429) = 0.755102042 Calculate the square root of the right side: 0.868966076 Break this problem into two subproblems by setting (x + -1.428571429) equal to 0.868966076 and -0.868966076.Subproblem 1
x + -1.428571429 = 0.868966076 Simplifying x + -1.428571429 = 0.868966076 Reorder the terms: -1.428571429 + x = 0.868966076 Solving -1.428571429 + x = 0.868966076 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.428571429' to each side of the equation. -1.428571429 + 1.428571429 + x = 0.868966076 + 1.428571429 Combine like terms: -1.428571429 + 1.428571429 = 0.000000000 0.000000000 + x = 0.868966076 + 1.428571429 x = 0.868966076 + 1.428571429 Combine like terms: 0.868966076 + 1.428571429 = 2.297537505 x = 2.297537505 Simplifying x = 2.297537505Subproblem 2
x + -1.428571429 = -0.868966076 Simplifying x + -1.428571429 = -0.868966076 Reorder the terms: -1.428571429 + x = -0.868966076 Solving -1.428571429 + x = -0.868966076 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.428571429' to each side of the equation. -1.428571429 + 1.428571429 + x = -0.868966076 + 1.428571429 Combine like terms: -1.428571429 + 1.428571429 = 0.000000000 0.000000000 + x = -0.868966076 + 1.428571429 x = -0.868966076 + 1.428571429 Combine like terms: -0.868966076 + 1.428571429 = 0.559605353 x = 0.559605353 Simplifying x = 0.559605353Solution
The solution to the problem is based on the solutions from the subproblems. x = {2.297537505, 0.559605353}
| 5(x+2)-2x=-17 | | 12x=216 | | 3(3x-2)=.75(4-24x) | | 7+17n-5=6n+128-3n | | 4(2n-6)=3(n+5) | | 3x-4=-2x+11 | | 3x+4=-2x+11 | | 8y+8y=32 | | x^2-x-50=0 | | 4x^3=16x | | 2x-8=56x | | -10.3x=20.6 | | 15+2w=35 | | 26+3a=-7a-14 | | 0.08x+0.05(6-x)=0.10(-132) | | n^2+3=0 | | -6(3b+3)+(19b-3)=0 | | 61.25=.15t+35 | | -5j-15+3=-12-2j-3j | | 11n=10n+15 | | 2X-7X=-20 | | t^2-1=0 | | 6(5-x)=4x | | 4.5q-2.8-4.1q=0.6q-3.1 | | 9x-(6x+3)=18 | | 13x+9-5=12x-4 | | -8y+9=-9y+5 | | (4a+7)+a= | | 4x-7=21-3x | | 3(5x-2)=50 | | 1.25z-1=-3.5 | | 4x+31=21x-41 |