If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying x2 + -18x + 40 = 0 Reorder the terms: 40 + -18x + x2 = 0 Solving 40 + -18x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '-40' to each side of the equation. 40 + -18x + -40 + x2 = 0 + -40 Reorder the terms: 40 + -40 + -18x + x2 = 0 + -40 Combine like terms: 40 + -40 = 0 0 + -18x + x2 = 0 + -40 -18x + x2 = 0 + -40 Combine like terms: 0 + -40 = -40 -18x + x2 = -40 The x term is -18x. Take half its coefficient (-9). Square it (81) and add it to both sides. Add '81' to each side of the equation. -18x + 81 + x2 = -40 + 81 Reorder the terms: 81 + -18x + x2 = -40 + 81 Combine like terms: -40 + 81 = 41 81 + -18x + x2 = 41 Factor a perfect square on the left side: (x + -9)(x + -9) = 41 Calculate the square root of the right side: 6.403124237 Break this problem into two subproblems by setting (x + -9) equal to 6.403124237 and -6.403124237.Subproblem 1
x + -9 = 6.403124237 Simplifying x + -9 = 6.403124237 Reorder the terms: -9 + x = 6.403124237 Solving -9 + x = 6.403124237 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + x = 6.403124237 + 9 Combine like terms: -9 + 9 = 0 0 + x = 6.403124237 + 9 x = 6.403124237 + 9 Combine like terms: 6.403124237 + 9 = 15.403124237 x = 15.403124237 Simplifying x = 15.403124237Subproblem 2
x + -9 = -6.403124237 Simplifying x + -9 = -6.403124237 Reorder the terms: -9 + x = -6.403124237 Solving -9 + x = -6.403124237 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + x = -6.403124237 + 9 Combine like terms: -9 + 9 = 0 0 + x = -6.403124237 + 9 x = -6.403124237 + 9 Combine like terms: -6.403124237 + 9 = 2.596875763 x = 2.596875763 Simplifying x = 2.596875763Solution
The solution to the problem is based on the solutions from the subproblems. x = {15.403124237, 2.596875763}
| 15(t-3)+6t=7(3t+2)-11 | | -2(4y+8)= | | 6+3r-5=7r+4-3r | | e=(2+.5y)+2 | | -9x-2=-7-2.2 | | 6[2-(2x-5)]=2(6-3x) | | 0.2x-6=3 | | 3(8-6n)=40 | | 9+2n-6=9n+8-6n | | (3w+5)(w+3)=7 | | 7(x+4)=7(x+7) | | x^3-69x+180=0 | | 6x*4=3*2x+10 | | 3-8b=4b-3 | | 12(x-1)=-6(2-x)+6x | | (4c-2)(5c-4)= | | x^2-8x+16+y^2-2y+1=10 | | 5c-15=10 | | r^2-20r+42=0 | | 5(5x-10)=25(x-2) | | (5a^4b+a^3b^2)+(6a^3b^2-5a^4b)= | | T+t+3=23 | | 8n^2+8n-50=-2 | | 0.3(x+90)+1.1=76 | | 7v^2-21v+48=0 | | 5x-47=0 | | 7v^2-21+48=0 | | 7(t-5)+7t=7(2t+4)-10 | | 3x^2-8-x^2=0 | | 3x^2-12x+9=0 | | w^2+8w-20=0 | | 7x^2-x-60=0 |