If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 4x2 + -40x + 31 = 0 Reorder the terms: 31 + -40x + 4x2 = 0 Solving 31 + -40x + 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'. 7.75 + -10x + x2 = 0 Move the constant term to the right: Add '-7.75' to each side of the equation. 7.75 + -10x + -7.75 + x2 = 0 + -7.75 Reorder the terms: 7.75 + -7.75 + -10x + x2 = 0 + -7.75 Combine like terms: 7.75 + -7.75 = 0.00 0.00 + -10x + x2 = 0 + -7.75 -10x + x2 = 0 + -7.75 Combine like terms: 0 + -7.75 = -7.75 -10x + x2 = -7.75 The x term is -10x. Take half its coefficient (-5). Square it (25) and add it to both sides. Add '25' to each side of the equation. -10x + 25 + x2 = -7.75 + 25 Reorder the terms: 25 + -10x + x2 = -7.75 + 25 Combine like terms: -7.75 + 25 = 17.25 25 + -10x + x2 = 17.25 Factor a perfect square on the left side: (x + -5)(x + -5) = 17.25 Calculate the square root of the right side: 4.153311931 Break this problem into two subproblems by setting (x + -5) equal to 4.153311931 and -4.153311931.Subproblem 1
x + -5 = 4.153311931 Simplifying x + -5 = 4.153311931 Reorder the terms: -5 + x = 4.153311931 Solving -5 + x = 4.153311931 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + x = 4.153311931 + 5 Combine like terms: -5 + 5 = 0 0 + x = 4.153311931 + 5 x = 4.153311931 + 5 Combine like terms: 4.153311931 + 5 = 9.153311931 x = 9.153311931 Simplifying x = 9.153311931Subproblem 2
x + -5 = -4.153311931 Simplifying x + -5 = -4.153311931 Reorder the terms: -5 + x = -4.153311931 Solving -5 + x = -4.153311931 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + x = -4.153311931 + 5 Combine like terms: -5 + 5 = 0 0 + x = -4.153311931 + 5 x = -4.153311931 + 5 Combine like terms: -4.153311931 + 5 = 0.846688069 x = 0.846688069 Simplifying x = 0.846688069Solution
The solution to the problem is based on the solutions from the subproblems. x = {9.153311931, 0.846688069}
| 4x^2-40[x]+31=0 | | S(14)=68-20log(14+1) | | 175=(25)(7)+100 | | 175=(25)(7)+0 | | 2y^2+y-4=0 | | -3(-8)+2y=-4 | | -3x+2(2+2x)=-4 | | -3x+2(2-2x)=-4 | | -2(3)-3y=-3 | | -2x-3(4x-13)=-3 | | (2m-7)(2m+7)= | | -2(1)-5y=- | | -2(1)-5y=-2 | | -2(1)-5=-2 | | -2x-5(4x-4)=-2 | | -5(-4)-2y=12 | | -5x-2(-2x-4)=12 | | 2x+5(-2)=-18 | | -1=-2 | | -3b=6b+9 | | 17m=6m-77 | | 5(9q+2)=50q+35 | | 20m=9m+11 | | -11(11q-6)=-129q+130 | | -10(-3-6r)=67r-33 | | -12+14p=10p | | -13+14p=10p | | -120+4m=16m | | 2z=5z+30 | | 7-2e=19-4e | | -3z=-10z-49 | | 12-5c/5=-1/10 |