If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 4x2 + 9x + 864 = 0 Reorder the terms: 864 + 9x + 4x2 = 0 Solving 864 + 9x + 4x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 4 the coefficient of the squared term: Divide each side by '4'. 216 + 2.25x + x2 = 0 Move the constant term to the right: Add '-216' to each side of the equation. 216 + 2.25x + -216 + x2 = 0 + -216 Reorder the terms: 216 + -216 + 2.25x + x2 = 0 + -216 Combine like terms: 216 + -216 = 0 0 + 2.25x + x2 = 0 + -216 2.25x + x2 = 0 + -216 Combine like terms: 0 + -216 = -216 2.25x + x2 = -216 The x term is 2.25x. Take half its coefficient (1.125). Square it (1.265625) and add it to both sides. Add '1.265625' to each side of the equation. 2.25x + 1.265625 + x2 = -216 + 1.265625 Reorder the terms: 1.265625 + 2.25x + x2 = -216 + 1.265625 Combine like terms: -216 + 1.265625 = -214.734375 1.265625 + 2.25x + x2 = -214.734375 Factor a perfect square on the left side: (x + 1.125)(x + 1.125) = -214.734375 Can't calculate square root of the right side. The solution to this equation could not be determined.
| 0.002/x=0.04 | | x-3x-8=5x-14 | | 12w-9w=15 | | x-5x+8=4x+5 | | x+x-x=x+15 | | 8sin-3cosx=4 | | 8.19X+40.95=81.9 | | x^7-5x^5=0 | | 4-2/3x=5/6 | | y=2x-3x^2 | | 3x^2+3y^2-6x+18y-10=0 | | -x+0.90x+2=0 | | y=3.5x+12 | | 1+a^2-(2a^2)(lna)=0 | | 3x-2+2x+1+5x-2=180 | | -x+0.95x+2=0 | | (4x^3/16x^5)^1/2 | | 5×1/20 | | -8=2x+a | | x/2.8=14 | | 3x+20=x+25+x+20 | | 15x+8=4x+5 | | y=5cos(8x) | | 0.95=(x-2)/x | | 5(4x-1)=90 | | 3x-4=13x-45 | | a^3-6a^2-144a-352=0 | | 2a-21.2=a-2.5 | | x^3-6x^2-144x-352=0 | | X^2=2y^2 | | X+(.0975*X)=18 | | X+(.0975*X)=17 |