If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 2x2 + 31x + -6.9 = 0 Reorder the terms: -6.9 + 31x + 2x2 = 0 Solving -6.9 + 31x + 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'. -3.45 + 15.5x + x2 = 0 Move the constant term to the right: Add '3.45' to each side of the equation. -3.45 + 15.5x + 3.45 + x2 = 0 + 3.45 Reorder the terms: -3.45 + 3.45 + 15.5x + x2 = 0 + 3.45 Combine like terms: -3.45 + 3.45 = 0.00 0.00 + 15.5x + x2 = 0 + 3.45 15.5x + x2 = 0 + 3.45 Combine like terms: 0 + 3.45 = 3.45 15.5x + x2 = 3.45 The x term is 15.5x. Take half its coefficient (7.75). Square it (60.0625) and add it to both sides. Add '60.0625' to each side of the equation. 15.5x + 60.0625 + x2 = 3.45 + 60.0625 Reorder the terms: 60.0625 + 15.5x + x2 = 3.45 + 60.0625 Combine like terms: 3.45 + 60.0625 = 63.5125 60.0625 + 15.5x + x2 = 63.5125 Factor a perfect square on the left side: (x + 7.75)(x + 7.75) = 63.5125 Calculate the square root of the right side: 7.969473006 Break this problem into two subproblems by setting (x + 7.75) equal to 7.969473006 and -7.969473006.Subproblem 1
x + 7.75 = 7.969473006 Simplifying x + 7.75 = 7.969473006 Reorder the terms: 7.75 + x = 7.969473006 Solving 7.75 + x = 7.969473006 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-7.75' to each side of the equation. 7.75 + -7.75 + x = 7.969473006 + -7.75 Combine like terms: 7.75 + -7.75 = 0.00 0.00 + x = 7.969473006 + -7.75 x = 7.969473006 + -7.75 Combine like terms: 7.969473006 + -7.75 = 0.219473006 x = 0.219473006 Simplifying x = 0.219473006Subproblem 2
x + 7.75 = -7.969473006 Simplifying x + 7.75 = -7.969473006 Reorder the terms: 7.75 + x = -7.969473006 Solving 7.75 + x = -7.969473006 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-7.75' to each side of the equation. 7.75 + -7.75 + x = -7.969473006 + -7.75 Combine like terms: 7.75 + -7.75 = 0.00 0.00 + x = -7.969473006 + -7.75 x = -7.969473006 + -7.75 Combine like terms: -7.969473006 + -7.75 = -15.719473006 x = -15.719473006 Simplifying x = -15.719473006Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.219473006, -15.719473006}
| -27/17x/9 | | 277x/9 | | -277x/9 | | -6x^3+39x-63x=0 | | y-8=5/4(x-4) | | (X/2)-8=16 | | (X/2)-8=16 | | (X-5)(x-3)=(x+3)(x+7) | | -17+77=-5(x+2) | | (5/2)x+9=x+(15/2) | | c^2+3c-10= | | x+x+(x+45)= | | 6(x-9)-4(x+7)=-1 | | -7/19p=-2 | | (6/5)y+11=-7 | | 7(c+9)=7(c-5) | | (9x+1/20)=(1/2) | | 8/8+12x200 | | 19x-7=12x-14 | | 8/8+20x200 | | (2x-18)+(3x-8)=4x+2 | | -[3x+(9x+7)]= | | -7-20/6 | | 7(c-9)=7(c-5) | | (5/x)+(1/2)=(6/x) | | x^2-2x^1-3=0 | | 2-8/9 | | 7e^3x=56 | | -0.3x+2.37=-0.1x+3.57 | | 14+4=-3(4x-6) | | 4x^(19/11)-28=0 | | 4x^19/11-28=0 |