If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying -0.8x2 + -0.8x + -0.2 = 0 Reorder the terms: -0.2 + -0.8x + -0.8x2 = 0 Solving -0.2 + -0.8x + -0.8x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by -0.8 the coefficient of the squared term: Divide each side by '-0.8'. 0.25 + x + x2 = 0 Move the constant term to the right: Add '-0.25' to each side of the equation. 0.25 + x + -0.25 + x2 = 0 + -0.25 Reorder the terms: 0.25 + -0.25 + x + x2 = 0 + -0.25 Combine like terms: 0.25 + -0.25 = 0.00 0.00 + x + x2 = 0 + -0.25 x + x2 = 0 + -0.25 Combine like terms: 0 + -0.25 = -0.25 x + x2 = -0.25 The x term is x. Take half its coefficient (0.5). Square it (0.25) and add it to both sides. Add '0.25' to each side of the equation. + 0.25 + x2 = -0.25 + 0.25 Combine like terms: + 0.25 = 1.25 1.25 + x2 = -0.25 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 1.25 + x2 = 0.00 Factor a perfect square on the left side: (x + 0.5)(x + 0.5) = 0.00 Calculate the square root of the right side: 0.00 Break this problem into two subproblems by setting (x + 0.5) equal to 0.00 and 0.00.Subproblem 1
x + 0.5 = 0.00 Simplifying x + 0.5 = 0.00 Reorder the terms: 0.5 + x = 0.00 Solving 0.5 + x = 0.00 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = 0.00 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 0.00 + -0.5 x = 0.00 + -0.5 Combine like terms: 0.00 + -0.5 = -0.5 x = -0.5 Simplifying x = -0.5Subproblem 2
x + 0.5 = 0.00 Simplifying x + 0.5 = 0.00 Reorder the terms: 0.5 + x = 0.00 Solving 0.5 + x = 0.00 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = 0.00 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 0.00 + -0.5 x = 0.00 + -0.5 Combine like terms: 0.00 + -0.5 = -0.5 x = -0.5 Simplifying x = -0.5Solution
The solution to the problem is based on the solutions from the subproblems. x = {-0.5, -0.5}
| 12+g=-20 | | 5.63+p+6.74= | | (2e^4x)=8 | | 2e^4x=8 | | -2y^2=Y+3 | | -32+j+16-4j= | | 112x^2-252=0 | | -3.5t^2+4.7x-2.9=0 | | -3y=48 | | 90x-120x+40=0 | | -2y^2+Y+3=0 | | 15y^5-25y^4+35y^3= | | 3y-2=0 | | -80=16n | | -15=m+7 | | 3x^2+2=66 | | 3y-2=-1 | | 40x^5-6x^4-4x^3= | | -3k^2+42k-147=0 | | 8x^2+14x+21=-12x | | 48y^2-72xy+27x^2=0 | | 7x^3+14x^2=105x | | 36m^2-84m+49=0 | | x+1-4=x^2+49 | | x+1-4=x^2-49 | | 45x-5=0 | | 68=x-33 | | (x+1)-2=x-7 | | 0.3(x+10)+0.9x=39 | | x^3-4x^2-6x+24=0 | | 0.07-0.007x=0.7 | | 9y^3+8=4y+13y^2 |