If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 2x2 + 13x + -1 = 0 Reorder the terms: -1 + 13x + 2x2 = 0 Solving -1 + 13x + 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'. -0.5 + 6.5x + x2 = 0 Move the constant term to the right: Add '0.5' to each side of the equation. -0.5 + 6.5x + 0.5 + x2 = 0 + 0.5 Reorder the terms: -0.5 + 0.5 + 6.5x + x2 = 0 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + 6.5x + x2 = 0 + 0.5 6.5x + x2 = 0 + 0.5 Combine like terms: 0 + 0.5 = 0.5 6.5x + x2 = 0.5 The x term is 6.5x. Take half its coefficient (3.25). Square it (10.5625) and add it to both sides. Add '10.5625' to each side of the equation. 6.5x + 10.5625 + x2 = 0.5 + 10.5625 Reorder the terms: 10.5625 + 6.5x + x2 = 0.5 + 10.5625 Combine like terms: 0.5 + 10.5625 = 11.0625 10.5625 + 6.5x + x2 = 11.0625 Factor a perfect square on the left side: (x + 3.25)(x + 3.25) = 11.0625 Calculate the square root of the right side: 3.326033674 Break this problem into two subproblems by setting (x + 3.25) equal to 3.326033674 and -3.326033674.Subproblem 1
x + 3.25 = 3.326033674 Simplifying x + 3.25 = 3.326033674 Reorder the terms: 3.25 + x = 3.326033674 Solving 3.25 + x = 3.326033674 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3.25' to each side of the equation. 3.25 + -3.25 + x = 3.326033674 + -3.25 Combine like terms: 3.25 + -3.25 = 0.00 0.00 + x = 3.326033674 + -3.25 x = 3.326033674 + -3.25 Combine like terms: 3.326033674 + -3.25 = 0.076033674 x = 0.076033674 Simplifying x = 0.076033674Subproblem 2
x + 3.25 = -3.326033674 Simplifying x + 3.25 = -3.326033674 Reorder the terms: 3.25 + x = -3.326033674 Solving 3.25 + x = -3.326033674 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3.25' to each side of the equation. 3.25 + -3.25 + x = -3.326033674 + -3.25 Combine like terms: 3.25 + -3.25 = 0.00 0.00 + x = -3.326033674 + -3.25 x = -3.326033674 + -3.25 Combine like terms: -3.326033674 + -3.25 = -6.576033674 x = -6.576033674 Simplifying x = -6.576033674Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.076033674, -6.576033674}
| 3x^2-2=x-3 | | 7a-14/-4 | | 2.5X-23X= | | 42=8a+13a | | (x)(x+1)(x+2)(x+3)=5334 | | 3x-4x+11=7 | | -10a+9a=12 | | 7-23=4x-4-4x | | 25+7w=12w | | 21+11x+8q-5x-3q-18= | | -3x-15=-9x+15 | | 10=4-3cosx | | 12[x-3]=84 | | 6[x-18]=216 | | 9c^2+64=0 | | -1+0.25x=-0.875 | | 4n-5s+3y=2s+3 | | ln(9)+ln(x)=1.4 | | 768=3a*a | | 42-13x=12x-2.5 | | 42-42x=12x-2.5 | | 2x+(-5)-5=10 | | 13[x-3]=104 | | 7-5n=-43 | | 25x+100= | | 7+5=-8x+12 | | 26-n=13 | | 9-3i/1-i | | 8[x+39]=352 | | 20x+45=5 | | 15n-15n= | | a2b2-ab3/ab |