If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying (4x2 + -4x + 16) + (5x2 + 9x + -72) = 0 Reorder the terms: (16 + -4x + 4x2) + (5x2 + 9x + -72) = 0 Remove parenthesis around (16 + -4x + 4x2) 16 + -4x + 4x2 + (5x2 + 9x + -72) = 0 Reorder the terms: 16 + -4x + 4x2 + (-72 + 9x + 5x2) = 0 Remove parenthesis around (-72 + 9x + 5x2) 16 + -4x + 4x2 + -72 + 9x + 5x2 = 0 Reorder the terms: 16 + -72 + -4x + 9x + 4x2 + 5x2 = 0 Combine like terms: 16 + -72 = -56 -56 + -4x + 9x + 4x2 + 5x2 = 0 Combine like terms: -4x + 9x = 5x -56 + 5x + 4x2 + 5x2 = 0 Combine like terms: 4x2 + 5x2 = 9x2 -56 + 5x + 9x2 = 0 Solving -56 + 5x + 9x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 9 the coefficient of the squared term: Divide each side by '9'. -6.222222222 + 0.5555555556x + x2 = 0 Move the constant term to the right: Add '6.222222222' to each side of the equation. -6.222222222 + 0.5555555556x + 6.222222222 + x2 = 0 + 6.222222222 Reorder the terms: -6.222222222 + 6.222222222 + 0.5555555556x + x2 = 0 + 6.222222222 Combine like terms: -6.222222222 + 6.222222222 = 0.000000000 0.000000000 + 0.5555555556x + x2 = 0 + 6.222222222 0.5555555556x + x2 = 0 + 6.222222222 Combine like terms: 0 + 6.222222222 = 6.222222222 0.5555555556x + x2 = 6.222222222 The x term is 0.5555555556x. Take half its coefficient (0.2777777778). Square it (0.07716049384) and add it to both sides. Add '0.07716049384' to each side of the equation. 0.5555555556x + 0.07716049384 + x2 = 6.222222222 + 0.07716049384 Reorder the terms: 0.07716049384 + 0.5555555556x + x2 = 6.222222222 + 0.07716049384 Combine like terms: 6.222222222 + 0.07716049384 = 6.29938271584 0.07716049384 + 0.5555555556x + x2 = 6.29938271584 Factor a perfect square on the left side: (x + 0.2777777778)(x + 0.2777777778) = 6.29938271584 Calculate the square root of the right side: 2.509857111 Break this problem into two subproblems by setting (x + 0.2777777778) equal to 2.509857111 and -2.509857111.Subproblem 1
x + 0.2777777778 = 2.509857111 Simplifying x + 0.2777777778 = 2.509857111 Reorder the terms: 0.2777777778 + x = 2.509857111 Solving 0.2777777778 + x = 2.509857111 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.2777777778' to each side of the equation. 0.2777777778 + -0.2777777778 + x = 2.509857111 + -0.2777777778 Combine like terms: 0.2777777778 + -0.2777777778 = 0.0000000000 0.0000000000 + x = 2.509857111 + -0.2777777778 x = 2.509857111 + -0.2777777778 Combine like terms: 2.509857111 + -0.2777777778 = 2.2320793332 x = 2.2320793332 Simplifying x = 2.2320793332Subproblem 2
x + 0.2777777778 = -2.509857111 Simplifying x + 0.2777777778 = -2.509857111 Reorder the terms: 0.2777777778 + x = -2.509857111 Solving 0.2777777778 + x = -2.509857111 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.2777777778' to each side of the equation. 0.2777777778 + -0.2777777778 + x = -2.509857111 + -0.2777777778 Combine like terms: 0.2777777778 + -0.2777777778 = 0.0000000000 0.0000000000 + x = -2.509857111 + -0.2777777778 x = -2.509857111 + -0.2777777778 Combine like terms: -2.509857111 + -0.2777777778 = -2.7876348888 x = -2.7876348888 Simplifying x = -2.7876348888Solution
The solution to the problem is based on the solutions from the subproblems. x = {2.2320793332, -2.7876348888}
| x^3-5x^2-4x=20 | | 0.4x-0.5x-7=3 | | 3v+8=29 | | y=1/2(62-8) | | -2x+4x=1 | | x-x^2=36 | | 2.8k=13.44 | | a/12=3 | | X=19.2 | | 9x=173 | | 29x=90 | | Y=3x^2+5x-6 | | (a^4/-2b^2)^5 | | 8(z-1)-(9-8z)=15z | | (3x^3-8x^2+4x+2)-(5x^2-4x+6)= | | X+10+5*x+10=180 | | 25.12=2*3.14*r | | R=3units | | 7x+10-4x=3+2x-6 | | 39x-54=14 | | x-3y=13fory | | 6z+z=6z-6 | | 24x+81=358 | | E^2x=100 | | Y=x^5-3x^4-27x^2+81x | | p=100-5t | | 5x-4=7+2x | | Y-0=3/10[x-(-10)] | | n/12=3 | | 15x+62=148 | | I=-250x^2+4000x | | 12x+14=46 |