If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying -5x2 + 8x + 7 = 0 Reorder the terms: 7 + 8x + -5x2 = 0 Solving 7 + 8x + -5x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by -5 the coefficient of the squared term: Divide each side by '-5'. -1.4 + -1.6x + x2 = 0 Move the constant term to the right: Add '1.4' to each side of the equation. -1.4 + -1.6x + 1.4 + x2 = 0 + 1.4 Reorder the terms: -1.4 + 1.4 + -1.6x + x2 = 0 + 1.4 Combine like terms: -1.4 + 1.4 = 0.0 0.0 + -1.6x + x2 = 0 + 1.4 -1.6x + x2 = 0 + 1.4 Combine like terms: 0 + 1.4 = 1.4 -1.6x + x2 = 1.4 The x term is -1.6x. Take half its coefficient (-0.8). Square it (0.64) and add it to both sides. Add '0.64' to each side of the equation. -1.6x + 0.64 + x2 = 1.4 + 0.64 Reorder the terms: 0.64 + -1.6x + x2 = 1.4 + 0.64 Combine like terms: 1.4 + 0.64 = 2.04 0.64 + -1.6x + x2 = 2.04 Factor a perfect square on the left side: (x + -0.8)(x + -0.8) = 2.04 Calculate the square root of the right side: 1.428285686 Break this problem into two subproblems by setting (x + -0.8) equal to 1.428285686 and -1.428285686.Subproblem 1
x + -0.8 = 1.428285686 Simplifying x + -0.8 = 1.428285686 Reorder the terms: -0.8 + x = 1.428285686 Solving -0.8 + x = 1.428285686 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.8' to each side of the equation. -0.8 + 0.8 + x = 1.428285686 + 0.8 Combine like terms: -0.8 + 0.8 = 0.0 0.0 + x = 1.428285686 + 0.8 x = 1.428285686 + 0.8 Combine like terms: 1.428285686 + 0.8 = 2.228285686 x = 2.228285686 Simplifying x = 2.228285686Subproblem 2
x + -0.8 = -1.428285686 Simplifying x + -0.8 = -1.428285686 Reorder the terms: -0.8 + x = -1.428285686 Solving -0.8 + x = -1.428285686 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.8' to each side of the equation. -0.8 + 0.8 + x = -1.428285686 + 0.8 Combine like terms: -0.8 + 0.8 = 0.0 0.0 + x = -1.428285686 + 0.8 x = -1.428285686 + 0.8 Combine like terms: -1.428285686 + 0.8 = -0.628285686 x = -0.628285686 Simplifying x = -0.628285686Solution
The solution to the problem is based on the solutions from the subproblems. x = {2.228285686, -0.628285686}
| 5y+2(y-6)=4(y+1)-3 | | -2x^2+2x+6=0 | | 2x-x(5+y)+3xy+4(2x-y)=0 | | x^2-6x+x^2+9x=50 | | -2(5t-2)+3t=6t-4 | | 843-677= | | 4x-5/8+x=4x+5/4+3 | | (.15+x)(x+.05)= | | x/a+x/b=c | | 2x-2=2(x+4) | | -222-(-117)= | | 51-89= | | 3v^2-75=0 | | 3v^2+14-15=0 | | 71-123= | | 1.0095x-x=40000 | | Z=y+10 | | 10x+5y=0.75 | | 1/2t+7=4 | | 5v^2-26=24 | | 4d+3=3d-1 | | 3*(0.2x-5)-4*(0.3x-5)=10+0.4x | | -3(5x-6)=12 | | 4(y-1)=-12 | | r/5=8/10 | | 7-5/(5x-2)=0 | | mp^2+7m+3p^2+21=0 | | 5(3x-6)-4(x+1)-17= | | -173-162= | | 6x+8=2+x+6x | | c^2-176c+192=0 | | 5x^2+24x=384 |