If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 21x2 + 11x + -86 = 0 Reorder the terms: -86 + 11x + 21x2 = 0 Solving -86 + 11x + 21x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 21 the coefficient of the squared term: Divide each side by '21'. -4.095238095 + 0.5238095238x + x2 = 0 Move the constant term to the right: Add '4.095238095' to each side of the equation. -4.095238095 + 0.5238095238x + 4.095238095 + x2 = 0 + 4.095238095 Reorder the terms: -4.095238095 + 4.095238095 + 0.5238095238x + x2 = 0 + 4.095238095 Combine like terms: -4.095238095 + 4.095238095 = 0.000000000 0.000000000 + 0.5238095238x + x2 = 0 + 4.095238095 0.5238095238x + x2 = 0 + 4.095238095 Combine like terms: 0 + 4.095238095 = 4.095238095 0.5238095238x + x2 = 4.095238095 The x term is 0.5238095238x. Take half its coefficient (0.2619047619). Square it (0.06859410431) and add it to both sides. Add '0.06859410431' to each side of the equation. 0.5238095238x + 0.06859410431 + x2 = 4.095238095 + 0.06859410431 Reorder the terms: 0.06859410431 + 0.5238095238x + x2 = 4.095238095 + 0.06859410431 Combine like terms: 4.095238095 + 0.06859410431 = 4.16383219931 0.06859410431 + 0.5238095238x + x2 = 4.16383219931 Factor a perfect square on the left side: (x + 0.2619047619)(x + 0.2619047619) = 4.16383219931 Calculate the square root of the right side: 2.040547034 Break this problem into two subproblems by setting (x + 0.2619047619) equal to 2.040547034 and -2.040547034.Subproblem 1
x + 0.2619047619 = 2.040547034 Simplifying x + 0.2619047619 = 2.040547034 Reorder the terms: 0.2619047619 + x = 2.040547034 Solving 0.2619047619 + x = 2.040547034 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.2619047619' to each side of the equation. 0.2619047619 + -0.2619047619 + x = 2.040547034 + -0.2619047619 Combine like terms: 0.2619047619 + -0.2619047619 = 0.0000000000 0.0000000000 + x = 2.040547034 + -0.2619047619 x = 2.040547034 + -0.2619047619 Combine like terms: 2.040547034 + -0.2619047619 = 1.7786422721 x = 1.7786422721 Simplifying x = 1.7786422721Subproblem 2
x + 0.2619047619 = -2.040547034 Simplifying x + 0.2619047619 = -2.040547034 Reorder the terms: 0.2619047619 + x = -2.040547034 Solving 0.2619047619 + x = -2.040547034 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.2619047619' to each side of the equation. 0.2619047619 + -0.2619047619 + x = -2.040547034 + -0.2619047619 Combine like terms: 0.2619047619 + -0.2619047619 = 0.0000000000 0.0000000000 + x = -2.040547034 + -0.2619047619 x = -2.040547034 + -0.2619047619 Combine like terms: -2.040547034 + -0.2619047619 = -2.3024517959 x = -2.3024517959 Simplifying x = -2.3024517959Solution
The solution to the problem is based on the solutions from the subproblems. x = {1.7786422721, -2.3024517959}
| p+(p+5)=47 | | 0.50x+0.50(10-x)=0.10(-49) | | 3m-10=2(4m-4) | | f(x)=3x^2-5x+12 | | -1/3(-1+6t)=19/3-3t | | 14/3-34r/3=-4/3(10r-2) | | 25/3=28a/3-4(4a/3-1/3) | | 6q/5+2(-1+2q/5)=0+10q | | -4*(x+8)+14=7*(x-2)+29 | | 8(0)-3y=72 | | -p/3+2/3(-1+9p)=2-3/3+2p/3 | | 4x1/8 | | 5x+27=-9*(x-10)+7 | | 8x-3(0)=30 | | x=8/3y | | 5h=12.50 | | 12x+2*(x-3)=7*(x-5)+1 | | -2(x+2)=-2x-3-1 | | 6x-2x^2-24x^4= | | (e^7x)=11 | | -(2x+10)+8=4*(-x+1) | | 14(n-6)=14n-32 | | 3x-4*(x-2)+2x=1 | | 4x-7=12x-50 | | 7x=23-3x | | -32-5(7*7-10*10)= | | -32-5*7*7-10*10= | | x-15=-57 | | x+19=54 | | 4x-5=7x+15 | | 5x+12=6x+17 | | m=8+4n |