If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying x2 + 40x + -11 = 0 Reorder the terms: -11 + 40x + x2 = 0 Solving -11 + 40x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '11' to each side of the equation. -11 + 40x + 11 + x2 = 0 + 11 Reorder the terms: -11 + 11 + 40x + x2 = 0 + 11 Combine like terms: -11 + 11 = 0 0 + 40x + x2 = 0 + 11 40x + x2 = 0 + 11 Combine like terms: 0 + 11 = 11 40x + x2 = 11 The x term is 40x. Take half its coefficient (20). Square it (400) and add it to both sides. Add '400' to each side of the equation. 40x + 400 + x2 = 11 + 400 Reorder the terms: 400 + 40x + x2 = 11 + 400 Combine like terms: 11 + 400 = 411 400 + 40x + x2 = 411 Factor a perfect square on the left side: (x + 20)(x + 20) = 411 Calculate the square root of the right side: 20.273134933 Break this problem into two subproblems by setting (x + 20) equal to 20.273134933 and -20.273134933.Subproblem 1
x + 20 = 20.273134933 Simplifying x + 20 = 20.273134933 Reorder the terms: 20 + x = 20.273134933 Solving 20 + x = 20.273134933 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-20' to each side of the equation. 20 + -20 + x = 20.273134933 + -20 Combine like terms: 20 + -20 = 0 0 + x = 20.273134933 + -20 x = 20.273134933 + -20 Combine like terms: 20.273134933 + -20 = 0.273134933 x = 0.273134933 Simplifying x = 0.273134933Subproblem 2
x + 20 = -20.273134933 Simplifying x + 20 = -20.273134933 Reorder the terms: 20 + x = -20.273134933 Solving 20 + x = -20.273134933 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-20' to each side of the equation. 20 + -20 + x = -20.273134933 + -20 Combine like terms: 20 + -20 = 0 0 + x = -20.273134933 + -20 x = -20.273134933 + -20 Combine like terms: -20.273134933 + -20 = -40.273134933 x = -40.273134933 Simplifying x = -40.273134933Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.273134933, -40.273134933}
| X+70=20 | | 3t^2-4t-15= | | (4v-1)(5-v)=0 | | 5a+7=49 | | -5(3x+4)=4x-20 | | -9n+2=-8n-10 | | a+4b=3 | | 3n-16=5(8-n) | | (-I)(3-2i)= | | 6x-7=-6(5x-1/3) | | f(x)=20+7cosx | | 12x^4-18x=0 | | 20-16i=4x+4yi | | Xz=17+4(x+y) | | (3/2)*R^2-2R=2 | | z=17+4(x+y)Aliveforx | | 8(x+5)+5=-3 | | (5x+4)=(6x+7) | | (5-4i)(5-4i)= | | 8(x+5)+5= | | ((y-7)/y)=9 | | (-I)(6-2i)= | | 4x^2+80x=276 | | 63=-5x-2x | | 3x^2-3xy-y^2+2x+2y-10=0 | | -17-4(x+7)=-14x+7(x-6) | | 8x+20x-x=189 | | (1-2i)(2+3i)= | | 6=y/9.6 | | 13-3y=-5(3-2y) | | -2/-3(5p-16)=13q | | 15/16÷3/8 |