If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying x2 + 30x + 99 = 0 Reorder the terms: 99 + 30x + x2 = 0 Solving 99 + 30x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '-99' to each side of the equation. 99 + 30x + -99 + x2 = 0 + -99 Reorder the terms: 99 + -99 + 30x + x2 = 0 + -99 Combine like terms: 99 + -99 = 0 0 + 30x + x2 = 0 + -99 30x + x2 = 0 + -99 Combine like terms: 0 + -99 = -99 30x + x2 = -99 The x term is 30x. Take half its coefficient (15). Square it (225) and add it to both sides. Add '225' to each side of the equation. 30x + 225 + x2 = -99 + 225 Reorder the terms: 225 + 30x + x2 = -99 + 225 Combine like terms: -99 + 225 = 126 225 + 30x + x2 = 126 Factor a perfect square on the left side: (x + 15)(x + 15) = 126 Calculate the square root of the right side: 11.22497216 Break this problem into two subproblems by setting (x + 15) equal to 11.22497216 and -11.22497216.Subproblem 1
x + 15 = 11.22497216 Simplifying x + 15 = 11.22497216 Reorder the terms: 15 + x = 11.22497216 Solving 15 + x = 11.22497216 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-15' to each side of the equation. 15 + -15 + x = 11.22497216 + -15 Combine like terms: 15 + -15 = 0 0 + x = 11.22497216 + -15 x = 11.22497216 + -15 Combine like terms: 11.22497216 + -15 = -3.77502784 x = -3.77502784 Simplifying x = -3.77502784Subproblem 2
x + 15 = -11.22497216 Simplifying x + 15 = -11.22497216 Reorder the terms: 15 + x = -11.22497216 Solving 15 + x = -11.22497216 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-15' to each side of the equation. 15 + -15 + x = -11.22497216 + -15 Combine like terms: 15 + -15 = 0 0 + x = -11.22497216 + -15 x = -11.22497216 + -15 Combine like terms: -11.22497216 + -15 = -26.22497216 x = -26.22497216 Simplifying x = -26.22497216Solution
The solution to the problem is based on the solutions from the subproblems. x = {-3.77502784, -26.22497216}
| k+b=28 | | 0.166x=1.166 | | 4x^3+12x^2-9x-27=0 | | x-27=38 | | 91-4x=8x-19 | | 5x+28=14x+44 | | 3x-5=2x+5*2 | | ((55)7g)=456635 | | z^2+2z=-14-7z | | 8y+2x=16 | | 10-7x=133-28x | | x^2-6x=-12+2x | | -13=-15+y | | 10x-3=5x+7 | | 3x+54=180 | | 2z(4-8)+-6=24x+39 | | -5x^2-12x+18=0 | | x-(.4x)=160000 | | x-(x*.40)=160000 | | 8i+57=25 | | 73h-90=202 | | -42g-150=-24 | | 83f-51=-51 | | 72e+72=0 | | 4(3t-4)=10 | | 1.52y=3.14(y-8.57) | | 21-27d+18=72 | | 45c-73=-28 | | 81b+15=-471 | | 35a-83=-13 | | x-7.8=-3.5 | | -8(t-6)-(t+4)=11 |