If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 2x2 + 9x + -9 = 0 Reorder the terms: -9 + 9x + 2x2 = 0 Solving -9 + 9x + 2x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. -4.5 + 4.5x + x2 = 0 Move the constant term to the right: Add '4.5' to each side of the equation. -4.5 + 4.5x + 4.5 + x2 = 0 + 4.5 Reorder the terms: -4.5 + 4.5 + 4.5x + x2 = 0 + 4.5 Combine like terms: -4.5 + 4.5 = 0.0 0.0 + 4.5x + x2 = 0 + 4.5 4.5x + x2 = 0 + 4.5 Combine like terms: 0 + 4.5 = 4.5 4.5x + x2 = 4.5 The x term is 4.5x. Take half its coefficient (2.25). Square it (5.0625) and add it to both sides. Add '5.0625' to each side of the equation. 4.5x + 5.0625 + x2 = 4.5 + 5.0625 Reorder the terms: 5.0625 + 4.5x + x2 = 4.5 + 5.0625 Combine like terms: 4.5 + 5.0625 = 9.5625 5.0625 + 4.5x + x2 = 9.5625 Factor a perfect square on the left side: (x + 2.25)(x + 2.25) = 9.5625 Calculate the square root of the right side: 3.092329219 Break this problem into two subproblems by setting (x + 2.25) equal to 3.092329219 and -3.092329219.Subproblem 1
x + 2.25 = 3.092329219 Simplifying x + 2.25 = 3.092329219 Reorder the terms: 2.25 + x = 3.092329219 Solving 2.25 + x = 3.092329219 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.25' to each side of the equation. 2.25 + -2.25 + x = 3.092329219 + -2.25 Combine like terms: 2.25 + -2.25 = 0.00 0.00 + x = 3.092329219 + -2.25 x = 3.092329219 + -2.25 Combine like terms: 3.092329219 + -2.25 = 0.842329219 x = 0.842329219 Simplifying x = 0.842329219Subproblem 2
x + 2.25 = -3.092329219 Simplifying x + 2.25 = -3.092329219 Reorder the terms: 2.25 + x = -3.092329219 Solving 2.25 + x = -3.092329219 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.25' to each side of the equation. 2.25 + -2.25 + x = -3.092329219 + -2.25 Combine like terms: 2.25 + -2.25 = 0.00 0.00 + x = -3.092329219 + -2.25 x = -3.092329219 + -2.25 Combine like terms: -3.092329219 + -2.25 = -5.342329219 x = -5.342329219 Simplifying x = -5.342329219Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.842329219, -5.342329219}
| 2+3x-5=x+5 | | x+2+3-x= | | (n-6)*3=6 | | 7-9x=27-23x | | -34x=-4x | | -3+3x+9=3(x+2) | | -13-(0.25)h=7 | | 2x+5+x=4-2x | | (n+5)*2=18 | | 5x+28=3x+68 | | 4(x+2)=10x+3-2x | | 46=-64x | | x(x+2)(x-4)=3x-x^2 | | -4x^2-3=9x | | -8x+4(1+5x)=4(-6x+4)-4 | | .666z+z=.666 | | 58-4x=8x-22 | | x+6+x=15 | | 3m+8= | | 5x-4=-6+3 | | 18x=-19 | | 2+5n=32 | | y=x^5-20x^2 | | 3=.33333-2v | | 3y+-7=8 | | 160t-16t^2=0 | | 6-9x=142-37x | | 5p/2=3p-4 | | .583333333x-3=4 | | 160-16t^2=0 | | .625-y=.75 | | 3x^2-11x+9=13 |