If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying x2 + 4 = -7x Reorder the terms: 4 + x2 = -7x Solving 4 + x2 = -7x Solving for variable 'x'. Reorder the terms: 4 + 7x + x2 = -7x + 7x Combine like terms: -7x + 7x = 0 4 + 7x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-4' to each side of the equation. 4 + 7x + -4 + x2 = 0 + -4 Reorder the terms: 4 + -4 + 7x + x2 = 0 + -4 Combine like terms: 4 + -4 = 0 0 + 7x + x2 = 0 + -4 7x + x2 = 0 + -4 Combine like terms: 0 + -4 = -4 7x + x2 = -4 The x term is 7x. Take half its coefficient (3.5). Square it (12.25) and add it to both sides. Add '12.25' to each side of the equation. 7x + 12.25 + x2 = -4 + 12.25 Reorder the terms: 12.25 + 7x + x2 = -4 + 12.25 Combine like terms: -4 + 12.25 = 8.25 12.25 + 7x + x2 = 8.25 Factor a perfect square on the left side: (x + 3.5)(x + 3.5) = 8.25 Calculate the square root of the right side: 2.872281323 Break this problem into two subproblems by setting (x + 3.5) equal to 2.872281323 and -2.872281323.Subproblem 1
x + 3.5 = 2.872281323 Simplifying x + 3.5 = 2.872281323 Reorder the terms: 3.5 + x = 2.872281323 Solving 3.5 + x = 2.872281323 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3.5' to each side of the equation. 3.5 + -3.5 + x = 2.872281323 + -3.5 Combine like terms: 3.5 + -3.5 = 0.0 0.0 + x = 2.872281323 + -3.5 x = 2.872281323 + -3.5 Combine like terms: 2.872281323 + -3.5 = -0.627718677 x = -0.627718677 Simplifying x = -0.627718677Subproblem 2
x + 3.5 = -2.872281323 Simplifying x + 3.5 = -2.872281323 Reorder the terms: 3.5 + x = -2.872281323 Solving 3.5 + x = -2.872281323 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3.5' to each side of the equation. 3.5 + -3.5 + x = -2.872281323 + -3.5 Combine like terms: 3.5 + -3.5 = 0.0 0.0 + x = -2.872281323 + -3.5 x = -2.872281323 + -3.5 Combine like terms: -2.872281323 + -3.5 = -6.372281323 x = -6.372281323 Simplifying x = -6.372281323Solution
The solution to the problem is based on the solutions from the subproblems. x = {-0.627718677, -6.372281323}
| 9x+1=3x+4 | | c-20.18=-7.35 | | 0.2-x=3x | | 144=x-2*x-2 | | 30x-10=14+27 | | x/3-7 | | 4x-9=x-24 | | 24.36=w-7.9 | | 8n-9=8(14/5)-9 | | 12=x+15 | | x/45/4 | | r^2+7+12=0 | | L=8.5 | | -13.25=k-6 | | 7r^4+14r^2+7= | | -x/3=10/9 | | 3/7m=33 | | 64x-(180/x^2) | | 6log[2](x+5)=24 | | 21-13x=-21+13x | | (2x)=60 | | tan^2x-tanx=0 | | 2x=3a-20 | | -6x+5y=-22 | | (7s-18)+2s=90 | | 19+8x=23 | | F(x)=6x^9 | | -t-2a=3 | | 8-4w-8=-4 | | 12.96-p=-13.45 | | .5x-.4(-12)=0.8 | | t-2a=3 |