If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 11.999960 = 4x2 + 8x Reorder the terms: 11.999960 = 8x + 4x2 Solving 11.999960 = 8x + 4x2 Solving for variable 'x'. Reorder the terms: 11.999960 + -8x + -4x2 = 8x + -8x + 4x2 + -4x2 Combine like terms: 8x + -8x = 0 11.999960 + -8x + -4x2 = 0 + 4x2 + -4x2 11.999960 + -8x + -4x2 = 4x2 + -4x2 Combine like terms: 4x2 + -4x2 = 0 11.999960 + -8x + -4x2 = 0 Begin completing the square. Divide all terms by -4 the coefficient of the squared term: Divide each side by '-4'. -2.99999 + 2x + x2 = 0 Move the constant term to the right: Add '2.99999' to each side of the equation. -2.99999 + 2x + 2.99999 + x2 = 0 + 2.99999 Reorder the terms: -2.99999 + 2.99999 + 2x + x2 = 0 + 2.99999 Combine like terms: -2.99999 + 2.99999 = 0.00000 0.00000 + 2x + x2 = 0 + 2.99999 2x + x2 = 0 + 2.99999 Combine like terms: 0 + 2.99999 = 2.99999 2x + x2 = 2.99999 The x term is 2x. Take half its coefficient (1). Square it (1) and add it to both sides. Add '1' to each side of the equation. 2x + 1 + x2 = 2.99999 + 1 Reorder the terms: 1 + 2x + x2 = 2.99999 + 1 Combine like terms: 2.99999 + 1 = 3.99999 1 + 2x + x2 = 3.99999 Factor a perfect square on the left side: (x + 1)(x + 1) = 3.99999 Calculate the square root of the right side: 1.9999975 Break this problem into two subproblems by setting (x + 1) equal to 1.9999975 and -1.9999975.Subproblem 1
x + 1 = 1.9999975 Simplifying x + 1 = 1.9999975 Reorder the terms: 1 + x = 1.9999975 Solving 1 + x = 1.9999975 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + x = 1.9999975 + -1 Combine like terms: 1 + -1 = 0 0 + x = 1.9999975 + -1 x = 1.9999975 + -1 Combine like terms: 1.9999975 + -1 = 0.9999975 x = 0.9999975 Simplifying x = 0.9999975Subproblem 2
x + 1 = -1.9999975 Simplifying x + 1 = -1.9999975 Reorder the terms: 1 + x = -1.9999975 Solving 1 + x = -1.9999975 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + x = -1.9999975 + -1 Combine like terms: 1 + -1 = 0 0 + x = -1.9999975 + -1 x = -1.9999975 + -1 Combine like terms: -1.9999975 + -1 = -2.9999975 x = -2.9999975 Simplifying x = -2.9999975Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.9999975, -2.9999975}
| 11.294080=4x^2+8x | | 10.588200=4x^2+8x | | -7(3x-1)+12(2x-5)= | | 9.882320=4x^2+8x | | 9.176440=4x^2+8x | | 8.470560=4x^2+8x | | (-9)^3/2 | | 7.764680=4x^2+8x | | (-9)3/2 | | 5x*6x^2=78 | | 7xn=6 | | 2x+5y+10z=8950 | | x(3x-2)=408 | | 158=42-x | | 7.058800=4x^2+8x | | 6-8=7n | | 4g=g+g+g+g | | 2x+5y+10z=895 | | 6.352920=4x^2+8x | | 126=5x+1 | | 1/7x=24 | | s^2+9s+36= | | (3x+1)(x+1)=40 | | 2x+4x=64 | | (2+x)(4x-3)=0 | | x(14-2x)= | | 8p+5=-19 | | 5.647040=4x^2+8x | | 8p-5=-19 | | 4.941160=4x^2+8x | | 49t+54=96 | | 4.235280=4x^2+8x |