If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 28x2 + -21x + 9 = 0 Reorder the terms: 9 + -21x + 28x2 = 0 Solving 9 + -21x + 28x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 28 the coefficient of the squared term: Divide each side by '28'. 0.3214285714 + -0.75x + x2 = 0 Move the constant term to the right: Add '-0.3214285714' to each side of the equation. 0.3214285714 + -0.75x + -0.3214285714 + x2 = 0 + -0.3214285714 Reorder the terms: 0.3214285714 + -0.3214285714 + -0.75x + x2 = 0 + -0.3214285714 Combine like terms: 0.3214285714 + -0.3214285714 = 0.0000000000 0.0000000000 + -0.75x + x2 = 0 + -0.3214285714 -0.75x + x2 = 0 + -0.3214285714 Combine like terms: 0 + -0.3214285714 = -0.3214285714 -0.75x + x2 = -0.3214285714 The x term is -0.75x. Take half its coefficient (-0.375). Square it (0.140625) and add it to both sides. Add '0.140625' to each side of the equation. -0.75x + 0.140625 + x2 = -0.3214285714 + 0.140625 Reorder the terms: 0.140625 + -0.75x + x2 = -0.3214285714 + 0.140625 Combine like terms: -0.3214285714 + 0.140625 = -0.1808035714 0.140625 + -0.75x + x2 = -0.1808035714 Factor a perfect square on the left side: (x + -0.375)(x + -0.375) = -0.1808035714 Can't calculate square root of the right side. The solution to this equation could not be determined.
| G^2-64=0 | | 8+-5ln(x)=4 | | 2m^2+27m+70=0 | | -3m-36=10m-42 | | -0.6x^2+4.6x+3=0 | | 8k-13=5k+7k+9 | | r(x)=1000(1-(x/500))^2 | | 2x=-12+3- | | 2x=-12+4 | | 3k+6=12k-21 | | 3x+18=7x+14 | | (ab/5)^3 | | -20x-28=-6x-7x | | o^2=((r*sqrt(a*d))/v)*(((((c*R*p)/(B*b*r*sqrt(a*d)))-((c*R*w*q*t*v*a)/(B*r*sqrt(a*d))))^2)) | | 12x+6=21x-15 | | 14.75+a=75 | | -4(-1)(-5)(1)= | | 14.75+a=50 | | 14.75+a=60 | | 6x^3-21x^2-54x+189=0 | | 7-5x^1/3=10 | | 2m^2-20m-13=0 | | y=Wx(-6.9) | | 10x-30=6x+26 | | (3)2-(1/3)*(1/3) | | 2x+14=-35-5x | | 2(v-4)-4=-7(-3v+1)-4v | | x^2-4x=3x^2-2x | | (2a-5)-(3a+1)=0 | | 0.2(d-6)=0.3d+5-30+0.1d | | 12=0.3(2x+10) | | (2z+3)(4+z)=0 |