If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 2x2 + x + -42 = 0 Reorder the terms: -42 + x + 2x2 = 0 Solving -42 + x + 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'. -21 + 0.5x + x2 = 0 Move the constant term to the right: Add '21' to each side of the equation. -21 + 0.5x + 21 + x2 = 0 + 21 Reorder the terms: -21 + 21 + 0.5x + x2 = 0 + 21 Combine like terms: -21 + 21 = 0 0 + 0.5x + x2 = 0 + 21 0.5x + x2 = 0 + 21 Combine like terms: 0 + 21 = 21 0.5x + x2 = 21 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. 0.5x + 0.25 + x2 = 21 + 0.25 Reorder the terms: 0.25 + 0.5x + x2 = 21 + 0.25 Combine like terms: 21 + 0.25 = 21.25 0.25 + 0.5x + x2 = 21.25 Factor a perfect square on the left side: (x + 0.5)(x + 0.5) = 21.25 Calculate the square root of the right side: 4.609772229 Break this problem into two subproblems by setting (x + 0.5) equal to 4.609772229 and -4.609772229.Subproblem 1
x + 0.5 = 4.609772229 Simplifying x + 0.5 = 4.609772229 Reorder the terms: 0.5 + x = 4.609772229 Solving 0.5 + x = 4.609772229 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 = 4.609772229 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 4.609772229 + -0.5 x = 4.609772229 + -0.5 Combine like terms: 4.609772229 + -0.5 = 4.109772229 x = 4.109772229 Simplifying x = 4.109772229Subproblem 2
x + 0.5 = -4.609772229 Simplifying x + 0.5 = -4.609772229 Reorder the terms: 0.5 + x = -4.609772229 Solving 0.5 + x = -4.609772229 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 = -4.609772229 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -4.609772229 + -0.5 x = -4.609772229 + -0.5 Combine like terms: -4.609772229 + -0.5 = -5.109772229 x = -5.109772229 Simplifying x = -5.109772229Solution
The solution to the problem is based on the solutions from the subproblems. x = {4.109772229, -5.109772229}
| m^4-3m^3-6m^2-28m-24=0 | | 7w-77=42 | | (3y+1)+7(4y-1)= | | -9=-x+5x+3 | | 0.1*x=2*0.5 | | 2x(3+6)= | | 3x-2-5-x=x+3+4+x+x | | x+32=-19 | | (1-x)(1-x)= | | -82+7x=38+13x | | 90x+3y+5=3(30x+y+2)-1 | | 10y^8-(y^8+13)= | | 2.29-c=1.79 | | 40q+6=3+105q | | 8=4.6+d | | x^2+y^2-4x+6y-8=0 | | 5(7)+49= | | 0=-98t^2+147t | | 5x-4=5x | | x+(2+5)=6 | | 6x-5-2x-7=-7+3-4x | | a+24=30 | | 3x-6-4x=6 | | 1.5*x=x*12 | | 5x-11=12x-60 | | 2x-5x-18x-8=0 | | 112(c-3)=56 | | 6(n+7)=-18 | | 7b-(-18)= | | 4a^2-33a^2+35a=14028.5 | | 7b-(-28)= | | 4x+40=360 |