If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying a2 + -20a + 39 = 0 Reorder the terms: 39 + -20a + a2 = 0 Solving 39 + -20a + a2 = 0 Solving for variable 'a'. Begin completing the square. Move the constant term to the right: Add '-39' to each side of the equation. 39 + -20a + -39 + a2 = 0 + -39 Reorder the terms: 39 + -39 + -20a + a2 = 0 + -39 Combine like terms: 39 + -39 = 0 0 + -20a + a2 = 0 + -39 -20a + a2 = 0 + -39 Combine like terms: 0 + -39 = -39 -20a + a2 = -39 The a term is -20a. Take half its coefficient (-10). Square it (100) and add it to both sides. Add '100' to each side of the equation. -20a + 100 + a2 = -39 + 100 Reorder the terms: 100 + -20a + a2 = -39 + 100 Combine like terms: -39 + 100 = 61 100 + -20a + a2 = 61 Factor a perfect square on the left side: (a + -10)(a + -10) = 61 Calculate the square root of the right side: 7.810249676 Break this problem into two subproblems by setting (a + -10) equal to 7.810249676 and -7.810249676.Subproblem 1
a + -10 = 7.810249676 Simplifying a + -10 = 7.810249676 Reorder the terms: -10 + a = 7.810249676 Solving -10 + a = 7.810249676 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '10' to each side of the equation. -10 + 10 + a = 7.810249676 + 10 Combine like terms: -10 + 10 = 0 0 + a = 7.810249676 + 10 a = 7.810249676 + 10 Combine like terms: 7.810249676 + 10 = 17.810249676 a = 17.810249676 Simplifying a = 17.810249676Subproblem 2
a + -10 = -7.810249676 Simplifying a + -10 = -7.810249676 Reorder the terms: -10 + a = -7.810249676 Solving -10 + a = -7.810249676 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '10' to each side of the equation. -10 + 10 + a = -7.810249676 + 10 Combine like terms: -10 + 10 = 0 0 + a = -7.810249676 + 10 a = -7.810249676 + 10 Combine like terms: -7.810249676 + 10 = 2.189750324 a = 2.189750324 Simplifying a = 2.189750324Solution
The solution to the problem is based on the solutions from the subproblems. a = {17.810249676, 2.189750324}
| 8(3b+1)=4(b+3)+3 | | hx=7x+4 | | 4x+4=-6+2x+18 | | 3cosx-sinx=1 | | (x+6)+x=54 | | 6x^2-7-90=0 | | 3.1(9.2+6.4x)+x=59.78 | | 4/3×6/5 | | (6x-7)-(6x-5)= | | 3=10+c | | (4x)=(3x-8) | | X^7y^-4/x^-7y^-4 | | 4sinx=5 | | 12n+1.8=3.2 | | -1=8+21x | | 8y=9x+9 | | 15=-11b | | (2/3)(-4) | | 6=-2+v | | -3(5x)+2=-28 | | T*3-8=10 | | n^2+2=5 | | 437= | | 5(-x)+x=-8 | | 4mn= | | A*6=3+12 | | -5(3y)= | | -5=q-1 | | g/27=1/6 | | -8-10x+7= | | 61=3w+16 | | S+11=-5 |