If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying -2 + k = 7 + -20k2 Solving -2 + k = 7 + -20k2 Solving for variable 'k'. Reorder the terms: -2 + -7 + k + 20k2 = 7 + -20k2 + -7 + 20k2 Combine like terms: -2 + -7 = -9 -9 + k + 20k2 = 7 + -20k2 + -7 + 20k2 Reorder the terms: -9 + k + 20k2 = 7 + -7 + -20k2 + 20k2 Combine like terms: 7 + -7 = 0 -9 + k + 20k2 = 0 + -20k2 + 20k2 -9 + k + 20k2 = -20k2 + 20k2 Combine like terms: -20k2 + 20k2 = 0 -9 + k + 20k2 = 0 Begin completing the square. Divide all terms by 20 the coefficient of the squared term: Divide each side by '20'. -0.45 + 0.05k + k2 = 0 Move the constant term to the right: Add '0.45' to each side of the equation. -0.45 + 0.05k + 0.45 + k2 = 0 + 0.45 Reorder the terms: -0.45 + 0.45 + 0.05k + k2 = 0 + 0.45 Combine like terms: -0.45 + 0.45 = 0.00 0.00 + 0.05k + k2 = 0 + 0.45 0.05k + k2 = 0 + 0.45 Combine like terms: 0 + 0.45 = 0.45 0.05k + k2 = 0.45 The k term is k. Take half its coefficient (0.5). Square it (0.25) and add it to both sides. Add '0.25' to each side of the equation. 0.05k + 0.25 + k2 = 0.45 + 0.25 Reorder the terms: 0.25 + 0.05k + k2 = 0.45 + 0.25 Combine like terms: 0.45 + 0.25 = 0.7 0.25 + 0.05k + k2 = 0.7 Factor a perfect square on the left side: (k + 0.5)(k + 0.5) = 0.7 Calculate the square root of the right side: 0.836660027 Break this problem into two subproblems by setting (k + 0.5) equal to 0.836660027 and -0.836660027.Subproblem 1
k + 0.5 = 0.836660027 Simplifying k + 0.5 = 0.836660027 Reorder the terms: 0.5 + k = 0.836660027 Solving 0.5 + k = 0.836660027 Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + k = 0.836660027 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + k = 0.836660027 + -0.5 k = 0.836660027 + -0.5 Combine like terms: 0.836660027 + -0.5 = 0.336660027 k = 0.336660027 Simplifying k = 0.336660027Subproblem 2
k + 0.5 = -0.836660027 Simplifying k + 0.5 = -0.836660027 Reorder the terms: 0.5 + k = -0.836660027 Solving 0.5 + k = -0.836660027 Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + k = -0.836660027 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + k = -0.836660027 + -0.5 k = -0.836660027 + -0.5 Combine like terms: -0.836660027 + -0.5 = -1.336660027 k = -1.336660027 Simplifying k = -1.336660027Solution
The solution to the problem is based on the solutions from the subproblems. k = {0.336660027, -1.336660027}
| 10x^2+25x+15= | | 13x+4(x+9)=104 | | t^2+7t-8=0 | | 9n+18=8 | | 6x^2+25b+11=0 | | lnx=1.2 | | k-2=7-5k*4k | | -18=4.5m+12 | | -6(14+2x)=48 | | -18=4.5+12 | | 8(2+4)=x+6 | | 6x-1=1x+19 | | 3(x-5)+2(x-1)=8 | | 7(3-3x)=-210 | | 6x-2n+10-4=26 | | -16t^2+35t-20=0 | | ln(5x)=6 | | 9x^4-20x^2-21=0 | | -4(7x-4)=-292 | | r^2-7r-6=0 | | Z^2(4z^4+z^3-11z^2-6)= | | -3c=-21 | | 0.7w-0.5w+0.3w=4 | | k-2=7-5k | | (x-3)-(2x-1)= | | -4x^2+16x+48=0 | | (4x+1)+(2x-2)-(2x-1)= | | 6(x+2)=x+8 | | 4-c=3 | | 12+c=5 | | 2x^2+16x+30=0 | | -1=x-5 |