If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying x2 + 30x + -40 = 0 Reorder the terms: -40 + 30x + x2 = 0 Solving -40 + 30x + 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 + 30x + 40 + x2 = 0 + 40 Reorder the terms: -40 + 40 + 30x + x2 = 0 + 40 Combine like terms: -40 + 40 = 0 0 + 30x + x2 = 0 + 40 30x + x2 = 0 + 40 Combine like terms: 0 + 40 = 40 30x + x2 = 40 The x term is 30x. Take half its coefficient (15). Square it (225) and add it to both sides. Add '225' to each side of the equation. 30x + 225 + x2 = 40 + 225 Reorder the terms: 225 + 30x + x2 = 40 + 225 Combine like terms: 40 + 225 = 265 225 + 30x + x2 = 265 Factor a perfect square on the left side: (x + 15)(x + 15) = 265 Calculate the square root of the right side: 16.278820596 Break this problem into two subproblems by setting (x + 15) equal to 16.278820596 and -16.278820596.Subproblem 1
x + 15 = 16.278820596 Simplifying x + 15 = 16.278820596 Reorder the terms: 15 + x = 16.278820596 Solving 15 + x = 16.278820596 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-15' to each side of the equation. 15 + -15 + x = 16.278820596 + -15 Combine like terms: 15 + -15 = 0 0 + x = 16.278820596 + -15 x = 16.278820596 + -15 Combine like terms: 16.278820596 + -15 = 1.278820596 x = 1.278820596 Simplifying x = 1.278820596Subproblem 2
x + 15 = -16.278820596 Simplifying x + 15 = -16.278820596 Reorder the terms: 15 + x = -16.278820596 Solving 15 + x = -16.278820596 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-15' to each side of the equation. 15 + -15 + x = -16.278820596 + -15 Combine like terms: 15 + -15 = 0 0 + x = -16.278820596 + -15 x = -16.278820596 + -15 Combine like terms: -16.278820596 + -15 = -31.278820596 x = -31.278820596 Simplifying x = -31.278820596Solution
The solution to the problem is based on the solutions from the subproblems. x = {1.278820596, -31.278820596}
| 5x+5=52 | | 4-293x-4=1-(5x+4) | | 0+50*1-60-60*0+10=C | | q=40-0.5p | | -100+82=x | | 4(5x-1)-10x=3 | | -6x-3.4=3x+.2 | | -70-(-58)=x | | x^2+12x+56=0 | | -6x(x+4)-x^2+8-5x= | | 7x^8-38x^6+15x^4=0 | | 5x^4-11x^2+2=0 | | 2+w=-6 | | 5m^4-7m^2-6=0 | | 3x^2+3x+2=24 | | 0.16x^2+0.16x-0.26=0 | | x^2-4x+1= | | -3a^3+7a^2+4a+2+-a^3+a^2-9a+1= | | (2a+8b)= | | (-3x^2-1)*(-x+9)= | | u^4+8u^2+15=0 | | (x-2)-(3-x)=1 | | -3x+5-5=29-5 | | (2y^5+3y^4+y+1)+(8y^5-3y^4+4y-7)= | | 42b^2-60b-48=0 | | 28n^2-8n=0 | | 4-x=16-2x | | 4p-6+6=2p+10 | | 3b^3-7b^2=0 | | 4sin(2x)=3+cos(x) | | x^2-6+1=0 | | 8(x-1)-17(x-3)=4(4x-9)+4 |