If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying -3x2 + -4x + 9 = 0 Reorder the terms: 9 + -4x + -3x2 = 0 Solving 9 + -4x + -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'. -3 + 1.333333333x + x2 = 0 Move the constant term to the right: Add '3' to each side of the equation. -3 + 1.333333333x + 3 + x2 = 0 + 3 Reorder the terms: -3 + 3 + 1.333333333x + x2 = 0 + 3 Combine like terms: -3 + 3 = 0 0 + 1.333333333x + x2 = 0 + 3 1.333333333x + x2 = 0 + 3 Combine like terms: 0 + 3 = 3 1.333333333x + x2 = 3 The x term is 1.333333333x. Take half its coefficient (0.6666666665). Square it (0.4444444442) and add it to both sides. Add '0.4444444442' to each side of the equation. 1.333333333x + 0.4444444442 + x2 = 3 + 0.4444444442 Reorder the terms: 0.4444444442 + 1.333333333x + x2 = 3 + 0.4444444442 Combine like terms: 3 + 0.4444444442 = 3.4444444442 0.4444444442 + 1.333333333x + x2 = 3.4444444442 Factor a perfect square on the left side: (x + 0.6666666665)(x + 0.6666666665) = 3.4444444442 Calculate the square root of the right side: 1.855921454 Break this problem into two subproblems by setting (x + 0.6666666665) equal to 1.855921454 and -1.855921454.Subproblem 1
x + 0.6666666665 = 1.855921454 Simplifying x + 0.6666666665 = 1.855921454 Reorder the terms: 0.6666666665 + x = 1.855921454 Solving 0.6666666665 + x = 1.855921454 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.6666666665' to each side of the equation. 0.6666666665 + -0.6666666665 + x = 1.855921454 + -0.6666666665 Combine like terms: 0.6666666665 + -0.6666666665 = 0.0000000000 0.0000000000 + x = 1.855921454 + -0.6666666665 x = 1.855921454 + -0.6666666665 Combine like terms: 1.855921454 + -0.6666666665 = 1.1892547875 x = 1.1892547875 Simplifying x = 1.1892547875Subproblem 2
x + 0.6666666665 = -1.855921454 Simplifying x + 0.6666666665 = -1.855921454 Reorder the terms: 0.6666666665 + x = -1.855921454 Solving 0.6666666665 + x = -1.855921454 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.6666666665' to each side of the equation. 0.6666666665 + -0.6666666665 + x = -1.855921454 + -0.6666666665 Combine like terms: 0.6666666665 + -0.6666666665 = 0.0000000000 0.0000000000 + x = -1.855921454 + -0.6666666665 x = -1.855921454 + -0.6666666665 Combine like terms: -1.855921454 + -0.6666666665 = -2.5225881205 x = -2.5225881205 Simplifying x = -2.5225881205Solution
The solution to the problem is based on the solutions from the subproblems. x = {1.1892547875, -2.5225881205}
| 2.5x+3=9.75 | | 3b^2+9-6b-5+8b+4b^2= | | -x+7(x+8)=6x-(3x+1) | | 4x-5-5x=-14 | | y-(1/3)=(2/5) | | 0a+1b+4c=28 | | 5x+45=7x-9 | | 1a+2b+2c=28 | | 1-3x^6+6+7x^3+5x^6-3x^3= | | 4(x+8)=8 | | x/7-6 | | -3x-5y=12 | | 3x^2-18x+27=24 | | 18-15y+19=25 | | 9+4n=-15+2n | | 1a+1b+3c=25 | | y-1=3(x-3) | | -45-10x=10+15 | | 3X-(8X-2)=7-2X+4 | | x^2+23x+120= | | x^3+6x^2-81=0 | | 55x-11=44x | | -19x-3x=-10x | | 4(x/2-3/20)=17/5-3x | | -2(x+4)=-(x-4) | | -2(x+1)=2(x-9) | | 9x+2y+13= | | 3/4=x/8 | | 2(x-1)=4x | | 7d-12+2d=18 | | y=-1+-0.5x | | -9(x+8)=-4(x+3) |