If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying x4 + -27x2 + 121 = 0 Reorder the terms: 121 + -27x2 + x4 = 0 Solving 121 + -27x2 + x4 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '-121' to each side of the equation. 121 + -27x2 + -121 + x4 = 0 + -121 Reorder the terms: 121 + -121 + -27x2 + x4 = 0 + -121 Combine like terms: 121 + -121 = 0 0 + -27x2 + x4 = 0 + -121 -27x2 + x4 = 0 + -121 Combine like terms: 0 + -121 = -121 -27x2 + x4 = -121 The x term is -27x2. Take half its coefficient (-13.5). Square it (182.25) and add it to both sides. Add '182.25' to each side of the equation. -27x2 + 182.25 + x4 = -121 + 182.25 Reorder the terms: 182.25 + -27x2 + x4 = -121 + 182.25 Combine like terms: -121 + 182.25 = 61.25 182.25 + -27x2 + x4 = 61.25 Factor a perfect square on the left side: (x2 + -13.5)(x2 + -13.5) = 61.25 Calculate the square root of the right side: 7.826237921 Break this problem into two subproblems by setting (x2 + -13.5) equal to 7.826237921 and -7.826237921.Subproblem 1
x2 + -13.5 = 7.826237921 Simplifying x2 + -13.5 = 7.826237921 Reorder the terms: -13.5 + x2 = 7.826237921 Solving -13.5 + x2 = 7.826237921 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '13.5' to each side of the equation. -13.5 + 13.5 + x2 = 7.826237921 + 13.5 Combine like terms: -13.5 + 13.5 = 0.0 0.0 + x2 = 7.826237921 + 13.5 x2 = 7.826237921 + 13.5 Combine like terms: 7.826237921 + 13.5 = 21.326237921 x2 = 21.326237921 Simplifying x2 = 21.326237921 Take the square root of each side: x = {-4.618033989, 4.618033989}Subproblem 2
x2 + -13.5 = -7.826237921 Simplifying x2 + -13.5 = -7.826237921 Reorder the terms: -13.5 + x2 = -7.826237921 Solving -13.5 + x2 = -7.826237921 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '13.5' to each side of the equation. -13.5 + 13.5 + x2 = -7.826237921 + 13.5 Combine like terms: -13.5 + 13.5 = 0.0 0.0 + x2 = -7.826237921 + 13.5 x2 = -7.826237921 + 13.5 Combine like terms: -7.826237921 + 13.5 = 5.673762079 x2 = 5.673762079 Simplifying x2 = 5.673762079 Take the square root of each side: x = {-2.381966011, 2.381966011}Solution
The solution to the problem is based on the solutions from the subproblems. x = {-4.618033989, 4.618033989, -2.381966011, 2.381966011}
| 9x+2y=4000 | | Y+2x+(0.3z)=80 | | 26-6x=9x-4 | | -20log(x)=6 | | 2x+y+(0.3z)=80 | | x^2-4y^2+2z^2-4x+8y=0 | | 4x-20=-7 | | 6x+10=60x-100 | | 4(x·3)=288/3 | | 30+0+1=31 | | 17x+5=19-5 | | 6-3*3= | | 17x-5=15x+7 | | 80=2x+0.3y | | 87/1.45 | | 2a-19.2=a+2.8 | | 80=2x+12+y | | 2a-19.2=a | | 9/(4/((2x)^-3))) | | 80=2x+0.3y+z | | 9/(4/((2x^-3))) | | -4x-17=6x-18 | | -5(x+1)=3x-1+2(5x+3) | | 12(x+2)=10x+7 | | 31x=(135+4x) | | -2/7y=10 | | -5=-4+u | | -18=-8v+6(v-5) | | 4x+13-8x-1= | | 14r-8= | | Y=(X+4)+3 | | Y=in(x+4)+3 |