If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 0 = -2x2 + 8x + 5 Reorder the terms: 0 = 5 + 8x + -2x2 Solving 0 = 5 + 8x + -2x2 Solving for variable 'x'. Combine like terms: 0 + -5 = -5 -5 + -8x + 2x2 = 5 + 8x + -2x2 + -5 + -8x + 2x2 Reorder the terms: -5 + -8x + 2x2 = 5 + -5 + 8x + -8x + -2x2 + 2x2 Combine like terms: 5 + -5 = 0 -5 + -8x + 2x2 = 0 + 8x + -8x + -2x2 + 2x2 -5 + -8x + 2x2 = 8x + -8x + -2x2 + 2x2 Combine like terms: 8x + -8x = 0 -5 + -8x + 2x2 = 0 + -2x2 + 2x2 -5 + -8x + 2x2 = -2x2 + 2x2 Combine like terms: -2x2 + 2x2 = 0 -5 + -8x + 2x2 = 0 Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. -2.5 + -4x + x2 = 0 Move the constant term to the right: Add '2.5' to each side of the equation. -2.5 + -4x + 2.5 + x2 = 0 + 2.5 Reorder the terms: -2.5 + 2.5 + -4x + x2 = 0 + 2.5 Combine like terms: -2.5 + 2.5 = 0.0 0.0 + -4x + x2 = 0 + 2.5 -4x + x2 = 0 + 2.5 Combine like terms: 0 + 2.5 = 2.5 -4x + x2 = 2.5 The x term is -4x. Take half its coefficient (-2). Square it (4) and add it to both sides. Add '4' to each side of the equation. -4x + 4 + x2 = 2.5 + 4 Reorder the terms: 4 + -4x + x2 = 2.5 + 4 Combine like terms: 2.5 + 4 = 6.5 4 + -4x + x2 = 6.5 Factor a perfect square on the left side: (x + -2)(x + -2) = 6.5 Calculate the square root of the right side: 2.549509757 Break this problem into two subproblems by setting (x + -2) equal to 2.549509757 and -2.549509757.Subproblem 1
x + -2 = 2.549509757 Simplifying x + -2 = 2.549509757 Reorder the terms: -2 + x = 2.549509757 Solving -2 + x = 2.549509757 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + x = 2.549509757 + 2 Combine like terms: -2 + 2 = 0 0 + x = 2.549509757 + 2 x = 2.549509757 + 2 Combine like terms: 2.549509757 + 2 = 4.549509757 x = 4.549509757 Simplifying x = 4.549509757Subproblem 2
x + -2 = -2.549509757 Simplifying x + -2 = -2.549509757 Reorder the terms: -2 + x = -2.549509757 Solving -2 + x = -2.549509757 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + x = -2.549509757 + 2 Combine like terms: -2 + 2 = 0 0 + x = -2.549509757 + 2 x = -2.549509757 + 2 Combine like terms: -2.549509757 + 2 = -0.549509757 x = -0.549509757 Simplifying x = -0.549509757Solution
The solution to the problem is based on the solutions from the subproblems. x = {4.549509757, -0.549509757}
| 19n=14*15 | | 0=-2x^2+4x+9 | | 14*15=19n | | 0=-2x^2+4x+7 | | 3(1-x)-2(5-5x)=2x+3(1+5) | | 2x^2+13x-84= | | x*0,25=1500 | | 7x^2y+3xy^4= | | 3+4x-2x^2=0 | | x(x+1)=1332 | | f(x)=5x+1 | | 3t^2-6t-3=0 | | 2-x-6x^2=0 | | 18m=19*12 | | -71+25+-13= | | -4+-1+-5= | | 0.5y^2+3y+1=0 | | -595+-237= | | 113+-72= | | 18m=12*19 | | -11+0= | | 11x=13y | | 31*n=93*7 | | 7x^2-6X=5x^2-3x-1 | | 3x^2-55x-300=0 | | 9(x-2)+2=5x+4(-5+x) | | 3x^2-24x-47=0 | | (5x/7)-6=x | | (4x^2-8x^2)/2x | | W+(-2)=-12 | | 2y^2-17=0 | | -17=-9+d |