If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 54 = -0.8x2 + 64x Reorder the terms: 54 = 64x + -0.8x2 Solving 54 = 64x + -0.8x2 Solving for variable 'x'. Reorder the terms: 54 + -64x + 0.8x2 = 64x + -64x + -0.8x2 + 0.8x2 Combine like terms: 64x + -64x = 0 54 + -64x + 0.8x2 = 0 + -0.8x2 + 0.8x2 54 + -64x + 0.8x2 = -0.8x2 + 0.8x2 Combine like terms: -0.8x2 + 0.8x2 = 0.0 54 + -64x + 0.8x2 = 0.0 Begin completing the square. Divide all terms by 0.8 the coefficient of the squared term: Divide each side by '0.8'. 67.5 + -80x + x2 = 0 Move the constant term to the right: Add '-67.5' to each side of the equation. 67.5 + -80x + -67.5 + x2 = 0 + -67.5 Reorder the terms: 67.5 + -67.5 + -80x + x2 = 0 + -67.5 Combine like terms: 67.5 + -67.5 = 0.0 0.0 + -80x + x2 = 0 + -67.5 -80x + x2 = 0 + -67.5 Combine like terms: 0 + -67.5 = -67.5 -80x + x2 = -67.5 The x term is -80x. Take half its coefficient (-40). Square it (1600) and add it to both sides. Add '1600' to each side of the equation. -80x + 1600 + x2 = -67.5 + 1600 Reorder the terms: 1600 + -80x + x2 = -67.5 + 1600 Combine like terms: -67.5 + 1600 = 1532.5 1600 + -80x + x2 = 1532.5 Factor a perfect square on the left side: (x + -40)(x + -40) = 1532.5 Calculate the square root of the right side: 39.147158262 Break this problem into two subproblems by setting (x + -40) equal to 39.147158262 and -39.147158262.Subproblem 1
x + -40 = 39.147158262 Simplifying x + -40 = 39.147158262 Reorder the terms: -40 + x = 39.147158262 Solving -40 + x = 39.147158262 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '40' to each side of the equation. -40 + 40 + x = 39.147158262 + 40 Combine like terms: -40 + 40 = 0 0 + x = 39.147158262 + 40 x = 39.147158262 + 40 Combine like terms: 39.147158262 + 40 = 79.147158262 x = 79.147158262 Simplifying x = 79.147158262Subproblem 2
x + -40 = -39.147158262 Simplifying x + -40 = -39.147158262 Reorder the terms: -40 + x = -39.147158262 Solving -40 + x = -39.147158262 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '40' to each side of the equation. -40 + 40 + x = -39.147158262 + 40 Combine like terms: -40 + 40 = 0 0 + x = -39.147158262 + 40 x = -39.147158262 + 40 Combine like terms: -39.147158262 + 40 = 0.852841738 x = 0.852841738 Simplifying x = 0.852841738Solution
The solution to the problem is based on the solutions from the subproblems. x = {79.147158262, 0.852841738}
| 3/5=x/8 | | 8y-3=61 | | 27a+8b+3-10b-5a-2b= | | 2x+5/4-2(2x+1)/5=0 | | -4w^7+13w^4-8-w^4+2+12w^7= | | 54=-.8x^2+14.4x+2 | | 0=-.8x^2+14.4x+2 | | -7(x-2)+2=16 | | 45+6=21x | | 10e^2-2e+7-6e^2+15e= | | 3x-(1-7x)=4+3(2x+5) | | x+0.10x=550 | | -1-9w+4d+20+9w+3d= | | 16.2x-3.5=6.8x+4.7 | | 56=-.5*32x^2+60x+6 | | 56=.5*32x^2+60x+6 | | 5x-3=8-3x | | 1=-.5*32x^2+60x+6 | | 3x-10+30=50 | | 21x+7/6x+2 | | 1=-.5*32x^2+1000x+50 | | p=2(52)+2(56) | | 6+4x^6-3+6x+2-9x^6= | | Graphf(x)=11x^2 | | 15e-8-2e+14+e= | | 0=-.5*32x^2+1000x+50 | | 4+-3=-2(4-2t) | | -9+7w-9d+20+5w+9d= | | 4t-6=-2(3-2t) | | 1/3-x=2 | | 6+3h^5-1+6h+7-8h^5= | | 4/5+1/8 |