If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 25x2 + -85x + 81 = 0 Reorder the terms: 81 + -85x + 25x2 = 0 Solving 81 + -85x + 25x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 25 the coefficient of the squared term: Divide each side by '25'. 3.24 + -3.4x + x2 = 0 Move the constant term to the right: Add '-3.24' to each side of the equation. 3.24 + -3.4x + -3.24 + x2 = 0 + -3.24 Reorder the terms: 3.24 + -3.24 + -3.4x + x2 = 0 + -3.24 Combine like terms: 3.24 + -3.24 = 0.00 0.00 + -3.4x + x2 = 0 + -3.24 -3.4x + x2 = 0 + -3.24 Combine like terms: 0 + -3.24 = -3.24 -3.4x + x2 = -3.24 The x term is -3.4x. Take half its coefficient (-1.7). Square it (2.89) and add it to both sides. Add '2.89' to each side of the equation. -3.4x + 2.89 + x2 = -3.24 + 2.89 Reorder the terms: 2.89 + -3.4x + x2 = -3.24 + 2.89 Combine like terms: -3.24 + 2.89 = -0.35 2.89 + -3.4x + x2 = -0.35 Factor a perfect square on the left side: (x + -1.7)(x + -1.7) = -0.35 Can't calculate square root of the right side. The solution to this equation could not be determined.
| x+x*0.07=100 | | x-401.94=144.23 | | 3y+9=2y-7 | | k=5x^6 | | 6x+7=4x+31 | | 4p+14=-14 | | x+62=223 | | (6a^4+2a+6-a^2)-(7a-6a^3+3a^2-5a-6a-6)= | | 7x+5=4x+44 | | 6x^2=18x-12 | | -8i(-6i+2)+7(-2+6i)=0 | | 6A+8=5A-5 | | 5w-16=3w | | 180=3y-6 | | 6.2+1.4n=2.28 | | 10y^7+32y^6+6y^5=0 | | 0.16x+0.2(x-5)=0.01(4x-3) | | 15-4(2x+5y)=0 | | 36t^2+60t+25= | | 5x(3+8)=121 | | 4(x+8)-7x=2 | | y-8=-x-y | | 3ln(2)=ln(8) | | t/11=11 | | -1=1/3v | | r^2-4r+6=0 | | 2a+3c-8c+5a= | | 9-8x-7-4x=5 | | 5(4x+9)-6x=8x+12 | | 253+c=-24 | | 16j-4= | | (4x-2)(3x-4)=9 |