If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying -2x2 + 2x + -40 = 0 Reorder the terms: -40 + 2x + -2x2 = 0 Solving -40 + 2x + -2x2 = 0 Solving for variable 'x'. Factor out the Greatest Common Factor (GCF), '2'. 2(-20 + x + -1x2) = 0 Ignore the factor 2.Subproblem 1
Set the factor '(-20 + x + -1x2)' equal to zero and attempt to solve: Simplifying -20 + x + -1x2 = 0 Solving -20 + x + -1x2 = 0 Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. 20 + -1x + x2 = 0 Move the constant term to the right: Add '-20' to each side of the equation. 20 + -1x + -20 + x2 = 0 + -20 Reorder the terms: 20 + -20 + -1x + x2 = 0 + -20 Combine like terms: 20 + -20 = 0 0 + -1x + x2 = 0 + -20 -1x + x2 = 0 + -20 Combine like terms: 0 + -20 = -20 -1x + x2 = -20 The x term is x. Take half its coefficient (0.5). Square it (0.25) and add it to both sides. Add '0.25' to each side of the equation. -1x + 0.25 + x2 = -20 + 0.25 Reorder the terms: 0.25 + -1x + x2 = -20 + 0.25 Combine like terms: -20 + 0.25 = -19.75 0.25 + -1x + x2 = -19.75 Factor a perfect square on the left side: (x + 0.5)(x + 0.5) = -19.75 Can't calculate square root of the right side. The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.
| 2x+7=14x-89 | | -2x^2+4x+16=0 | | -140-12x=-5x+42 | | 3(2x-5)+8=6x-(2x+3) | | -8x-90=36-2x | | x*a*a+b*a+c=0 | | 5y-3=y+9 | | x*x*a+b*x+c=0 | | -x-172=14x+83 | | 16=s(s-6) | | a*x*x+b*x+c=0 | | -12x-192=-x+50 | | 4+a=12+b | | 4d+3d+7=21 | | 12=x+50 | | 4+y=12+x | | 3.3(m+-6.4)=-4.62 | | -36+4x=78-2x | | 5c=3c+6 | | -200x^2+3600x-6400-8500=0 | | 9x^2-1+4x^2+9=-21 | | 5x-28=7 | | x+(8y-15)=180 | | -198+x=122+11x | | 4f+3=15-2f | | 8500=-200X^2+3600x-6400 | | -69+15x=36+10x | | 2(3x-2)+(x+5)=4(x-2) | | -2x-70=-11x+137 | | -3x-15=11-4x | | 0=-x^2+4x+33 | | 10(x-3)=4x-79+5x |