If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 8x2 + 30x + 19 = 0 Reorder the terms: 19 + 30x + 8x2 = 0 Solving 19 + 30x + 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'. 2.375 + 3.75x + x2 = 0 Move the constant term to the right: Add '-2.375' to each side of the equation. 2.375 + 3.75x + -2.375 + x2 = 0 + -2.375 Reorder the terms: 2.375 + -2.375 + 3.75x + x2 = 0 + -2.375 Combine like terms: 2.375 + -2.375 = 0.000 0.000 + 3.75x + x2 = 0 + -2.375 3.75x + x2 = 0 + -2.375 Combine like terms: 0 + -2.375 = -2.375 3.75x + x2 = -2.375 The x term is 3.75x. Take half its coefficient (1.875). Square it (3.515625) and add it to both sides. Add '3.515625' to each side of the equation. 3.75x + 3.515625 + x2 = -2.375 + 3.515625 Reorder the terms: 3.515625 + 3.75x + x2 = -2.375 + 3.515625 Combine like terms: -2.375 + 3.515625 = 1.140625 3.515625 + 3.75x + x2 = 1.140625 Factor a perfect square on the left side: (x + 1.875)(x + 1.875) = 1.140625 Calculate the square root of the right side: 1.068000468 Break this problem into two subproblems by setting (x + 1.875) equal to 1.068000468 and -1.068000468.Subproblem 1
x + 1.875 = 1.068000468 Simplifying x + 1.875 = 1.068000468 Reorder the terms: 1.875 + x = 1.068000468 Solving 1.875 + x = 1.068000468 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.875' to each side of the equation. 1.875 + -1.875 + x = 1.068000468 + -1.875 Combine like terms: 1.875 + -1.875 = 0.000 0.000 + x = 1.068000468 + -1.875 x = 1.068000468 + -1.875 Combine like terms: 1.068000468 + -1.875 = -0.806999532 x = -0.806999532 Simplifying x = -0.806999532Subproblem 2
x + 1.875 = -1.068000468 Simplifying x + 1.875 = -1.068000468 Reorder the terms: 1.875 + x = -1.068000468 Solving 1.875 + x = -1.068000468 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.875' to each side of the equation. 1.875 + -1.875 + x = -1.068000468 + -1.875 Combine like terms: 1.875 + -1.875 = 0.000 0.000 + x = -1.068000468 + -1.875 x = -1.068000468 + -1.875 Combine like terms: -1.068000468 + -1.875 = -2.943000468 x = -2.943000468 Simplifying x = -2.943000468Solution
The solution to the problem is based on the solutions from the subproblems. x = {-0.806999532, -2.943000468}
| 8x^2+30x-19=0 | | 49=9a | | 9x-0=81 | | 4/5x-14=6 | | -7x+6=-8x+20 | | 19=7x^2-5x | | 14x^2-33x-56=0 | | 180=65+m | | N/132=5/12 | | 1/2x-3/4=6 | | -4=n-20 | | 3z+15=2z+16 | | N/9=36/81 | | z+1=z+2 | | -5*8+9= | | w(w+5)=100 | | -5(8)+9= | | -2y-7=-6-y | | 90=3x+16+5x+2 | | 0=19t^2+30 | | 6+10+9k=7+10k | | 238x^2-172x+30=0 | | http://www.rapbeats.net/#/beat/246 | | 6/6b | | -3g+9=-6g | | 2x+4+8=x+12 | | 2x1/7 | | 2x/3=-40 | | x-2/7=3/14 | | 2d+9=-1+3d | | y-5=2y-12 | | y-7=-3/5(15) |