If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying -2x2 + 8x + 5 = 0 Reorder the terms: 5 + 8x + -2x2 = 0 Solving 5 + 8x + -2x2 = 0 Solving for variable 'x'. 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}
| 2x+14=7(x-4) | | 2k+5-(k+3)= | | (8x-4)(x+3)=0 | | -(4y+4)-(-3y-7)=-1 | | -7w/6=28 | | -15-24=2x+15-3x | | x^2+7x+12=y | | -2/5w=14 | | -y=3x | | 5k+13=35 | | 3n/5n+9/10+n/5=-23/10 | | 3x^2+8x-13=-10 | | 2/5w=14 | | -7/3u=-28 | | V=l*w | | x+11=12x | | x+14=2x+21 | | 7/8x-4/3=-5 | | -x-4=12x | | b^6/(2b)^3 | | r+24=21 | | 2(x-1)+4x=10(x+3) | | z-8/7-z | | 1.67=10.02 | | 7/3u=-28 | | 9-k^2/k^2+6k-27 | | x-8=5x | | 3x+5/6y=9 | | 535=(75X)+Y | | 30x^2-60x+30=0 | | 375=(50X)+Y | | 6m/9 |