If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 0 = -8x2 + 9x + 9 Reorder the terms: 0 = 9 + 9x + -8x2 Solving 0 = 9 + 9x + -8x2 Solving for variable 'x'. Combine like terms: 0 + -9 = -9 -9 + -9x + 8x2 = 9 + 9x + -8x2 + -9 + -9x + 8x2 Reorder the terms: -9 + -9x + 8x2 = 9 + -9 + 9x + -9x + -8x2 + 8x2 Combine like terms: 9 + -9 = 0 -9 + -9x + 8x2 = 0 + 9x + -9x + -8x2 + 8x2 -9 + -9x + 8x2 = 9x + -9x + -8x2 + 8x2 Combine like terms: 9x + -9x = 0 -9 + -9x + 8x2 = 0 + -8x2 + 8x2 -9 + -9x + 8x2 = -8x2 + 8x2 Combine like terms: -8x2 + 8x2 = 0 -9 + -9x + 8x2 = 0 Begin completing the square. Divide all terms by 8 the coefficient of the squared term: Divide each side by '8'. -1.125 + -1.125x + x2 = 0 Move the constant term to the right: Add '1.125' to each side of the equation. -1.125 + -1.125x + 1.125 + x2 = 0 + 1.125 Reorder the terms: -1.125 + 1.125 + -1.125x + x2 = 0 + 1.125 Combine like terms: -1.125 + 1.125 = 0.000 0.000 + -1.125x + x2 = 0 + 1.125 -1.125x + x2 = 0 + 1.125 Combine like terms: 0 + 1.125 = 1.125 -1.125x + x2 = 1.125 The x term is -1.125x. Take half its coefficient (-0.5625). Square it (0.31640625) and add it to both sides. Add '0.31640625' to each side of the equation. -1.125x + 0.31640625 + x2 = 1.125 + 0.31640625 Reorder the terms: 0.31640625 + -1.125x + x2 = 1.125 + 0.31640625 Combine like terms: 1.125 + 0.31640625 = 1.44140625 0.31640625 + -1.125x + x2 = 1.44140625 Factor a perfect square on the left side: (x + -0.5625)(x + -0.5625) = 1.44140625 Calculate the square root of the right side: 1.200585795 Break this problem into two subproblems by setting (x + -0.5625) equal to 1.200585795 and -1.200585795.Subproblem 1
x + -0.5625 = 1.200585795 Simplifying x + -0.5625 = 1.200585795 Reorder the terms: -0.5625 + x = 1.200585795 Solving -0.5625 + x = 1.200585795 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5625' to each side of the equation. -0.5625 + 0.5625 + x = 1.200585795 + 0.5625 Combine like terms: -0.5625 + 0.5625 = 0.0000 0.0000 + x = 1.200585795 + 0.5625 x = 1.200585795 + 0.5625 Combine like terms: 1.200585795 + 0.5625 = 1.763085795 x = 1.763085795 Simplifying x = 1.763085795Subproblem 2
x + -0.5625 = -1.200585795 Simplifying x + -0.5625 = -1.200585795 Reorder the terms: -0.5625 + x = -1.200585795 Solving -0.5625 + x = -1.200585795 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5625' to each side of the equation. -0.5625 + 0.5625 + x = -1.200585795 + 0.5625 Combine like terms: -0.5625 + 0.5625 = 0.0000 0.0000 + x = -1.200585795 + 0.5625 x = -1.200585795 + 0.5625 Combine like terms: -1.200585795 + 0.5625 = -0.638085795 x = -0.638085795 Simplifying x = -0.638085795Solution
The solution to the problem is based on the solutions from the subproblems. x = {1.763085795, -0.638085795}
| 2(x+7)=5x-14 | | f(x)=-x^2+8x+10 | | (-p+2r-15)+(7p+5)= | | 4y^2+4y+15= | | 32=2+w*w | | 32=2+w | | 25x+90+60=0 | | v=19*4*3 | | x+2x+4x=7x | | x^2+2x-50=0 | | -8x^2+9x+9=0 | | 1/2(2x-1)=-1/9-4/9 | | 30x+36+60=0 | | 5y-4=9y-8 | | (5/6x)-(1/5x)+4=(7/10x) | | -6y-2=-5y-9 | | (6a^2+3a)/a | | 2(3x+8)=-6+16 | | 8x^2+9x+9=0 | | a=1/2*26*28 | | 250x=1342.5 | | 6x+16=3x+13 | | 5+10t-4=9t+9-7t | | 2x+6=3(x+2) | | x+1273= | | 2x-24-4x-30=3x-42+4x-66 | | 4y+9+7y= | | 9x-5x-2=0 | | 500.00+0.35x=1342.50 | | -6n-7=-10n+7 | | (x/17)=-8 | | /17=-8 |