If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying k2 + -8k = 7 Reorder the terms: -8k + k2 = 7 Solving -8k + k2 = 7 Solving for variable 'k'. Reorder the terms: -7 + -8k + k2 = 7 + -7 Combine like terms: 7 + -7 = 0 -7 + -8k + k2 = 0 Begin completing the square. Move the constant term to the right: Add '7' to each side of the equation. -7 + -8k + 7 + k2 = 0 + 7 Reorder the terms: -7 + 7 + -8k + k2 = 0 + 7 Combine like terms: -7 + 7 = 0 0 + -8k + k2 = 0 + 7 -8k + k2 = 0 + 7 Combine like terms: 0 + 7 = 7 -8k + k2 = 7 The k term is -8k. Take half its coefficient (-4). Square it (16) and add it to both sides. Add '16' to each side of the equation. -8k + 16 + k2 = 7 + 16 Reorder the terms: 16 + -8k + k2 = 7 + 16 Combine like terms: 7 + 16 = 23 16 + -8k + k2 = 23 Factor a perfect square on the left side: (k + -4)(k + -4) = 23 Calculate the square root of the right side: 4.795831523 Break this problem into two subproblems by setting (k + -4) equal to 4.795831523 and -4.795831523.Subproblem 1
k + -4 = 4.795831523 Simplifying k + -4 = 4.795831523 Reorder the terms: -4 + k = 4.795831523 Solving -4 + k = 4.795831523 Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + k = 4.795831523 + 4 Combine like terms: -4 + 4 = 0 0 + k = 4.795831523 + 4 k = 4.795831523 + 4 Combine like terms: 4.795831523 + 4 = 8.795831523 k = 8.795831523 Simplifying k = 8.795831523Subproblem 2
k + -4 = -4.795831523 Simplifying k + -4 = -4.795831523 Reorder the terms: -4 + k = -4.795831523 Solving -4 + k = -4.795831523 Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + k = -4.795831523 + 4 Combine like terms: -4 + 4 = 0 0 + k = -4.795831523 + 4 k = -4.795831523 + 4 Combine like terms: -4.795831523 + 4 = -0.795831523 k = -0.795831523 Simplifying k = -0.795831523Solution
The solution to the problem is based on the solutions from the subproblems. k = {8.795831523, -0.795831523}
| x+3=45 | | 25x^2-50x+25=0 | | 19x-11x=620 | | 29x=330-x | | 9b+4=67 | | 5x-4x+6=2x+12 | | -33+3p=-6(8p-3) | | 9x=20+x | | (c+5)(2c-1)(3c+2)=0 | | 4x+2x^2=240 | | x^2-6=40 | | 18x+27x=90 | | 2c(4c+3)2=0 | | 4x+7=87 | | 5x-2x+6=x-2 | | -6(8+2x)-8x=-168 | | 5(x-4)+2x=12+4x | | 13x=48-7x | | 4s+2(s+4)+4= | | 7x-6=x+9-4x | | 8x^3=x | | 6x+5-7x=10-4x+7 | | 3(3b-3)+3b= | | 7(x-4)=49 | | 100x-64=0 | | A=3.14(a)(b) | | 2a-6=a+2 | | 13x-7x=48 | | 6(y+4)-y= | | 15x=110+10x | | 25=20x+4x^2 | | x.x-2x-23=0 |