If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying -1x2 + 4x + 13 = 0 Reorder the terms: 13 + 4x + -1x2 = 0 Solving 13 + 4x + -1x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. -13 + -4x + x2 = 0 Move the constant term to the right: Add '13' to each side of the equation. -13 + -4x + 13 + x2 = 0 + 13 Reorder the terms: -13 + 13 + -4x + x2 = 0 + 13 Combine like terms: -13 + 13 = 0 0 + -4x + x2 = 0 + 13 -4x + x2 = 0 + 13 Combine like terms: 0 + 13 = 13 -4x + x2 = 13 The x term is -4x. Take half its coefficient (-2). Square it (4) and add it to both sides. Add '4' to each side of the equation. -4x + 4 + x2 = 13 + 4 Reorder the terms: 4 + -4x + x2 = 13 + 4 Combine like terms: 13 + 4 = 17 4 + -4x + x2 = 17 Factor a perfect square on the left side: (x + -2)(x + -2) = 17 Calculate the square root of the right side: 4.123105626 Break this problem into two subproblems by setting (x + -2) equal to 4.123105626 and -4.123105626.Subproblem 1
x + -2 = 4.123105626 Simplifying x + -2 = 4.123105626 Reorder the terms: -2 + x = 4.123105626 Solving -2 + x = 4.123105626 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + x = 4.123105626 + 2 Combine like terms: -2 + 2 = 0 0 + x = 4.123105626 + 2 x = 4.123105626 + 2 Combine like terms: 4.123105626 + 2 = 6.123105626 x = 6.123105626 Simplifying x = 6.123105626Subproblem 2
x + -2 = -4.123105626 Simplifying x + -2 = -4.123105626 Reorder the terms: -2 + x = -4.123105626 Solving -2 + x = -4.123105626 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + x = -4.123105626 + 2 Combine like terms: -2 + 2 = 0 0 + x = -4.123105626 + 2 x = -4.123105626 + 2 Combine like terms: -4.123105626 + 2 = -2.123105626 x = -2.123105626 Simplifying x = -2.123105626Solution
The solution to the problem is based on the solutions from the subproblems. x = {6.123105626, -2.123105626}
| 2x-7=-156x | | 5x+15y=17 | | 140=15x-520 | | 8-3a=5a^2 | | 2-x^3+5x^2-5x=0 | | x^2y+5xy^3=6 | | 36a=9a^2 | | -2+5=25 | | 6x-39+2x+67=180 | | 10n-10=-18 | | 8y-3=y+17 | | 0.13-5.7= | | -54=-6-3b | | 650=10x+15 | | -n+0.4+1.8=-4.2 | | -5x-1=-14 | | y=.10+15 | | 5x-10=105 | | 12(x-.5)=8(x+.75) | | 18-2x=2x-10 | | 17x-92=12+25x | | 2x+6=5(x+.6) | | (5x+4)(x^2-3x-6)= | | -6k^2+6k+6=6 | | 5+17K=8 | | 155=10(3x+10) | | 4(x-5)+2=5(x+3) | | 40+2x+16=180 | | 12x-14+18x=5x+16-64 | | -128=63x-44-47x | | x/5=x/7+4 | | 7x-9=82 |