If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying x2 + -8x + 4 = 90 Reorder the terms: 4 + -8x + x2 = 90 Solving 4 + -8x + x2 = 90 Solving for variable 'x'. Reorder the terms: 4 + -90 + -8x + x2 = 90 + -90 Combine like terms: 4 + -90 = -86 -86 + -8x + x2 = 90 + -90 Combine like terms: 90 + -90 = 0 -86 + -8x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '86' to each side of the equation. -86 + -8x + 86 + x2 = 0 + 86 Reorder the terms: -86 + 86 + -8x + x2 = 0 + 86 Combine like terms: -86 + 86 = 0 0 + -8x + x2 = 0 + 86 -8x + x2 = 0 + 86 Combine like terms: 0 + 86 = 86 -8x + x2 = 86 The x term is -8x. Take half its coefficient (-4). Square it (16) and add it to both sides. Add '16' to each side of the equation. -8x + 16 + x2 = 86 + 16 Reorder the terms: 16 + -8x + x2 = 86 + 16 Combine like terms: 86 + 16 = 102 16 + -8x + x2 = 102 Factor a perfect square on the left side: (x + -4)(x + -4) = 102 Calculate the square root of the right side: 10.099504938 Break this problem into two subproblems by setting (x + -4) equal to 10.099504938 and -10.099504938.Subproblem 1
x + -4 = 10.099504938 Simplifying x + -4 = 10.099504938 Reorder the terms: -4 + x = 10.099504938 Solving -4 + x = 10.099504938 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + x = 10.099504938 + 4 Combine like terms: -4 + 4 = 0 0 + x = 10.099504938 + 4 x = 10.099504938 + 4 Combine like terms: 10.099504938 + 4 = 14.099504938 x = 14.099504938 Simplifying x = 14.099504938Subproblem 2
x + -4 = -10.099504938 Simplifying x + -4 = -10.099504938 Reorder the terms: -4 + x = -10.099504938 Solving -4 + x = -10.099504938 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + x = -10.099504938 + 4 Combine like terms: -4 + 4 = 0 0 + x = -10.099504938 + 4 x = -10.099504938 + 4 Combine like terms: -10.099504938 + 4 = -6.099504938 x = -6.099504938 Simplifying x = -6.099504938Solution
The solution to the problem is based on the solutions from the subproblems. x = {14.099504938, -6.099504938}
| 180=68+2x | | 7+1c=18 | | 0.5x+1.6=3.9 | | 8n-(3n+6)= | | x(1+4)+x(1+2)=2x+12 | | 0.1/x=0.18 | | x+x+x+x=9 | | 1.5B=B | | 4(n+2)(n+5)=230 | | 9y^2-36y+300=0 | | 6x^3+5x^2+3x+2=0 | | (9-v)(5v+7)=0 | | 9x-3=40 | | 2*(10-y)+2y=20 | | 10d+5=4d+47 | | (x)=300(1.02)x | | .65b+4.99=6.94 | | 6(x-4)=-2.4 | | =-6x^2-x+7 | | 2e+1=77 | | 2x-3(2x-3)=0 | | 9(a+3)=65.7 | | 2x+5=11*11*11*11 | | 58=7x-5 | | 2/8+1/5= | | 2x+5=11? | | 25x^2+30x+3=0 | | 7(-k-1)=-56 | | 5e-5=44.5 | | r=34x-13 | | 2x+5=4*11 | | 2/10+1/5= |