If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying f(0) = -8x2 + 9x + 9 Reorder the terms for easier multiplication: 0f = -8x2 + 9x + 9 Anything times zero is zero. 0f = -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}
| 18+6n=168 | | 5x-9=40-2x | | -5(2x-2)=3x+1-x | | h(1.5)=-16t^2+25t+3 | | 6z^2=50 | | 5(-6)+9=(-6)-23 | | 15(t+3)+9t=6 | | a-18=-50 | | 16.02+44.48+16.1= | | 7-3+-20= | | -15+1.5y=-4.5 | | T^2+24=0 | | -5p-7=-6(p+6)-(-5+2p) | | 21+23n=28+16n | | 10.25-12.03-.45= | | 2(-1)-3=g(-1) | | A(1)=3.14r^2 | | 4x-24=5x-30-x+6 | | -1.08+3.796-9.422= | | 1150=175+75 | | 4x-6=5x-30-x+6 | | .25+.5=.25-.5 | | 7.17-9.4= | | 5+l=60 | | 5x^2=8-6x | | 12-6a=10-5z | | 5(5+4x)=25+20x | | X+7-(2x)=18 | | 6k-(-7-6k)=-89 | | g(-1)=2(-1)-3 | | 4x-5=6x+1 | | 2x^2=(-1)x-(-28) |