If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying x2 = 81 + -9x Solving x2 = 81 + -9x Solving for variable 'x'. Reorder the terms: -81 + 9x + x2 = 81 + -9x + -81 + 9x Reorder the terms: -81 + 9x + x2 = 81 + -81 + -9x + 9x Combine like terms: 81 + -81 = 0 -81 + 9x + x2 = 0 + -9x + 9x -81 + 9x + x2 = -9x + 9x Combine like terms: -9x + 9x = 0 -81 + 9x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '81' to each side of the equation. -81 + 9x + 81 + x2 = 0 + 81 Reorder the terms: -81 + 81 + 9x + x2 = 0 + 81 Combine like terms: -81 + 81 = 0 0 + 9x + x2 = 0 + 81 9x + x2 = 0 + 81 Combine like terms: 0 + 81 = 81 9x + x2 = 81 The x term is 9x. Take half its coefficient (4.5). Square it (20.25) and add it to both sides. Add '20.25' to each side of the equation. 9x + 20.25 + x2 = 81 + 20.25 Reorder the terms: 20.25 + 9x + x2 = 81 + 20.25 Combine like terms: 81 + 20.25 = 101.25 20.25 + 9x + x2 = 101.25 Factor a perfect square on the left side: (x + 4.5)(x + 4.5) = 101.25 Calculate the square root of the right side: 10.062305899 Break this problem into two subproblems by setting (x + 4.5) equal to 10.062305899 and -10.062305899.Subproblem 1
x + 4.5 = 10.062305899 Simplifying x + 4.5 = 10.062305899 Reorder the terms: 4.5 + x = 10.062305899 Solving 4.5 + x = 10.062305899 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4.5' to each side of the equation. 4.5 + -4.5 + x = 10.062305899 + -4.5 Combine like terms: 4.5 + -4.5 = 0.0 0.0 + x = 10.062305899 + -4.5 x = 10.062305899 + -4.5 Combine like terms: 10.062305899 + -4.5 = 5.562305899 x = 5.562305899 Simplifying x = 5.562305899Subproblem 2
x + 4.5 = -10.062305899 Simplifying x + 4.5 = -10.062305899 Reorder the terms: 4.5 + x = -10.062305899 Solving 4.5 + x = -10.062305899 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4.5' to each side of the equation. 4.5 + -4.5 + x = -10.062305899 + -4.5 Combine like terms: 4.5 + -4.5 = 0.0 0.0 + x = -10.062305899 + -4.5 x = -10.062305899 + -4.5 Combine like terms: -10.062305899 + -4.5 = -14.562305899 x = -14.562305899 Simplifying x = -14.562305899Solution
The solution to the problem is based on the solutions from the subproblems. x = {5.562305899, -14.562305899}
| 4x^2-5x=13 | | 6=v-6 | | 5(x+1)-2(3x+4)= | | 5x-92=-12x+180 | | -.848=-.2(6.5x-2) | | -141=-2x-3(-5x-3) | | (b+2)+b+(b+2+4)=20 | | 2(30)+4=y | | -141=2x-3(5x-3) | | 2(30)+4= | | x=5y-26 | | 0.8x-0.4(40+x)=0.2(40) | | 90+7x+6+6x-7=180 | | 90+7x+6+6x-7= | | 6v=40 | | 5x-(5x^2-3x)+9x^2= | | -7x+2=-3(x+-3)+-4x+-7 | | 10=-2n | | 8-(1-M)-3m=-5 | | lx-7l=16 | | 2x+3(4-2x)-2(x+3)=0 | | 8y+21=3y+7 | | ix-7l=16 | | -2(x-3)=40 | | -2(x-9)=11 | | 6x+5-3x=2(x+8)+1 | | -141=2x-3(-5x-3) | | 2(y+4)=y+10 | | 5=6(y-2) | | 2q+405=831 | | 0.5(4a-15)+3= | | cot^2x+2cotx+1=0 |