If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 8x2 + 15x + -139 = 0 Reorder the terms: -139 + 15x + 8x2 = 0 Solving -139 + 15x + 8x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 8 the coefficient of the squared term: Divide each side by '8'. -17.375 + 1.875x + x2 = 0 Move the constant term to the right: Add '17.375' to each side of the equation. -17.375 + 1.875x + 17.375 + x2 = 0 + 17.375 Reorder the terms: -17.375 + 17.375 + 1.875x + x2 = 0 + 17.375 Combine like terms: -17.375 + 17.375 = 0.000 0.000 + 1.875x + x2 = 0 + 17.375 1.875x + x2 = 0 + 17.375 Combine like terms: 0 + 17.375 = 17.375 1.875x + x2 = 17.375 The x term is 1.875x. Take half its coefficient (0.9375). Square it (0.87890625) and add it to both sides. Add '0.87890625' to each side of the equation. 1.875x + 0.87890625 + x2 = 17.375 + 0.87890625 Reorder the terms: 0.87890625 + 1.875x + x2 = 17.375 + 0.87890625 Combine like terms: 17.375 + 0.87890625 = 18.25390625 0.87890625 + 1.875x + x2 = 18.25390625 Factor a perfect square on the left side: (x + 0.9375)(x + 0.9375) = 18.25390625 Calculate the square root of the right side: 4.27245904 Break this problem into two subproblems by setting (x + 0.9375) equal to 4.27245904 and -4.27245904.Subproblem 1
x + 0.9375 = 4.27245904 Simplifying x + 0.9375 = 4.27245904 Reorder the terms: 0.9375 + x = 4.27245904 Solving 0.9375 + x = 4.27245904 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.9375' to each side of the equation. 0.9375 + -0.9375 + x = 4.27245904 + -0.9375 Combine like terms: 0.9375 + -0.9375 = 0.0000 0.0000 + x = 4.27245904 + -0.9375 x = 4.27245904 + -0.9375 Combine like terms: 4.27245904 + -0.9375 = 3.33495904 x = 3.33495904 Simplifying x = 3.33495904Subproblem 2
x + 0.9375 = -4.27245904 Simplifying x + 0.9375 = -4.27245904 Reorder the terms: 0.9375 + x = -4.27245904 Solving 0.9375 + x = -4.27245904 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.9375' to each side of the equation. 0.9375 + -0.9375 + x = -4.27245904 + -0.9375 Combine like terms: 0.9375 + -0.9375 = 0.0000 0.0000 + x = -4.27245904 + -0.9375 x = -4.27245904 + -0.9375 Combine like terms: -4.27245904 + -0.9375 = -5.20995904 x = -5.20995904 Simplifying x = -5.20995904Solution
The solution to the problem is based on the solutions from the subproblems. x = {3.33495904, -5.20995904}
| (3x-2)(3x+2)=4(x+1)(x-1) | | 2sin(1/2×x-1/3×pi)-1 | | 4(2x-1)-(x+2)= | | 8-t=7 | | .5x+2x=95 | | 18h-14=74 | | 2345=20 | | x-5.3=-302 | | x^2-42x-9= | | f(x)=lx+1l | | u=2*x*y-x | | 4x+2y=166 | | 4y+2z+0x=166 | | x^2-40x+150= | | 5x+7(x-10)=-94 | | x^2-38x+37= | | 6*.05+3= | | 3*(-.45)+.5=1.4+5*(-.45) | | 3*(-.45)+.5=1.4+5*(.45) | | n^2=3n-2 | | 3x+.5=1.4+5x | | 3r^3-12r=0 | | 8x+16=6zx | | x^2-20x+26.04= | | x^2-18x+23.24= | | 3x+4y+5z=34 | | 5[3x-1/5-2]=10 | | x=200+-10y+-20z | | 49-(6x+16)=5x | | 2(3x+4)=0 | | x^2+px+10=0 | | 0.50x+5y+10z=100 |