If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying d2 + 3d + -28 = d Reorder the terms: -28 + 3d + d2 = d Solving -28 + 3d + d2 = d Solving for variable 'd'. Reorder the terms: -28 + 3d + -1d + d2 = d + -1d Combine like terms: 3d + -1d = 2d -28 + 2d + d2 = d + -1d Combine like terms: d + -1d = 0 -28 + 2d + d2 = 0 Begin completing the square. Move the constant term to the right: Add '28' to each side of the equation. -28 + 2d + 28 + d2 = 0 + 28 Reorder the terms: -28 + 28 + 2d + d2 = 0 + 28 Combine like terms: -28 + 28 = 0 0 + 2d + d2 = 0 + 28 2d + d2 = 0 + 28 Combine like terms: 0 + 28 = 28 2d + d2 = 28 The d term is 2d. Take half its coefficient (1). Square it (1) and add it to both sides. Add '1' to each side of the equation. 2d + 1 + d2 = 28 + 1 Reorder the terms: 1 + 2d + d2 = 28 + 1 Combine like terms: 28 + 1 = 29 1 + 2d + d2 = 29 Factor a perfect square on the left side: (d + 1)(d + 1) = 29 Calculate the square root of the right side: 5.385164807 Break this problem into two subproblems by setting (d + 1) equal to 5.385164807 and -5.385164807.Subproblem 1
d + 1 = 5.385164807 Simplifying d + 1 = 5.385164807 Reorder the terms: 1 + d = 5.385164807 Solving 1 + d = 5.385164807 Solving for variable 'd'. Move all terms containing d to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + d = 5.385164807 + -1 Combine like terms: 1 + -1 = 0 0 + d = 5.385164807 + -1 d = 5.385164807 + -1 Combine like terms: 5.385164807 + -1 = 4.385164807 d = 4.385164807 Simplifying d = 4.385164807Subproblem 2
d + 1 = -5.385164807 Simplifying d + 1 = -5.385164807 Reorder the terms: 1 + d = -5.385164807 Solving 1 + d = -5.385164807 Solving for variable 'd'. Move all terms containing d to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + d = -5.385164807 + -1 Combine like terms: 1 + -1 = 0 0 + d = -5.385164807 + -1 d = -5.385164807 + -1 Combine like terms: -5.385164807 + -1 = -6.385164807 d = -6.385164807 Simplifying d = -6.385164807Solution
The solution to the problem is based on the solutions from the subproblems. d = {4.385164807, -6.385164807}
| 2(x+3)+2=8 | | -17=6m+1 | | 24cm+3m= | | 26x-98=17x-62 | | 8(3x+7)=25x | | (7-9i)(-8-9i)= | | g^2-8g+20=g | | 6x-32=4x-20 | | 5.32t=1.11t-8.42 | | 4x+9=6x-5 | | x(2x-2)+x(4x-2)=(6x+3)(x-1) | | 9(6-x)= | | 3p+5q=51 | | 3x^2-42x+216=0 | | 3(2r+2)-(r-4)=2r+2 | | X^2-X-5/10=0 | | X^2-X-5/10 | | 20x+116=11x+62 | | -2y-10=-25-5y | | 21x+7=3x-8x | | x=20+(4b-x) | | (x+2)+(x+4)=2x+6 | | y-10=11 | | X^2-6X+6Y=8 | | 20x+12y=2 | | .5(x-12)+2=1.25(x+8)-9.5 | | 5x-30=3x-20 | | -x-5x+7=-29 | | a[n]=7n+4 | | (V+5)(-0.1)=6 | | 2x-8-2=3x-1 | | 10y=(y+7) |