If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 3 = -16x2 + 90x + 7 Reorder the terms: 3 = 7 + 90x + -16x2 Solving 3 = 7 + 90x + -16x2 Solving for variable 'x'. Combine like terms: 3 + -7 = -4 -4 + -90x + 16x2 = 7 + 90x + -16x2 + -7 + -90x + 16x2 Reorder the terms: -4 + -90x + 16x2 = 7 + -7 + 90x + -90x + -16x2 + 16x2 Combine like terms: 7 + -7 = 0 -4 + -90x + 16x2 = 0 + 90x + -90x + -16x2 + 16x2 -4 + -90x + 16x2 = 90x + -90x + -16x2 + 16x2 Combine like terms: 90x + -90x = 0 -4 + -90x + 16x2 = 0 + -16x2 + 16x2 -4 + -90x + 16x2 = -16x2 + 16x2 Combine like terms: -16x2 + 16x2 = 0 -4 + -90x + 16x2 = 0 Factor out the Greatest Common Factor (GCF), '2'. 2(-2 + -45x + 8x2) = 0 Ignore the factor 2.Subproblem 1
Set the factor '(-2 + -45x + 8x2)' equal to zero and attempt to solve: Simplifying -2 + -45x + 8x2 = 0 Solving -2 + -45x + 8x2 = 0 Begin completing the square. Divide all terms by 8 the coefficient of the squared term: Divide each side by '8'. -0.25 + -5.625x + x2 = 0 Move the constant term to the right: Add '0.25' to each side of the equation. -0.25 + -5.625x + 0.25 + x2 = 0 + 0.25 Reorder the terms: -0.25 + 0.25 + -5.625x + x2 = 0 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.00 + -5.625x + x2 = 0 + 0.25 -5.625x + x2 = 0 + 0.25 Combine like terms: 0 + 0.25 = 0.25 -5.625x + x2 = 0.25 The x term is -5.625x. Take half its coefficient (-2.8125). Square it (7.91015625) and add it to both sides. Add '7.91015625' to each side of the equation. -5.625x + 7.91015625 + x2 = 0.25 + 7.91015625 Reorder the terms: 7.91015625 + -5.625x + x2 = 0.25 + 7.91015625 Combine like terms: 0.25 + 7.91015625 = 8.16015625 7.91015625 + -5.625x + x2 = 8.16015625 Factor a perfect square on the left side: (x + -2.8125)(x + -2.8125) = 8.16015625 Calculate the square root of the right side: 2.856598721 Break this problem into two subproblems by setting (x + -2.8125) equal to 2.856598721 and -2.856598721.Subproblem 1
x + -2.8125 = 2.856598721 Simplifying x + -2.8125 = 2.856598721 Reorder the terms: -2.8125 + x = 2.856598721 Solving -2.8125 + x = 2.856598721 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.8125' to each side of the equation. -2.8125 + 2.8125 + x = 2.856598721 + 2.8125 Combine like terms: -2.8125 + 2.8125 = 0.0000 0.0000 + x = 2.856598721 + 2.8125 x = 2.856598721 + 2.8125 Combine like terms: 2.856598721 + 2.8125 = 5.669098721 x = 5.669098721 Simplifying x = 5.669098721Subproblem 2
x + -2.8125 = -2.856598721 Simplifying x + -2.8125 = -2.856598721 Reorder the terms: -2.8125 + x = -2.856598721 Solving -2.8125 + x = -2.856598721 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.8125' to each side of the equation. -2.8125 + 2.8125 + x = -2.856598721 + 2.8125 Combine like terms: -2.8125 + 2.8125 = 0.0000 0.0000 + x = -2.856598721 + 2.8125 x = -2.856598721 + 2.8125 Combine like terms: -2.856598721 + 2.8125 = -0.044098721 x = -0.044098721 Simplifying x = -0.044098721Solution
The solution to the problem is based on the solutions from the subproblems. x = {5.669098721, -0.044098721}Solution
x = {5.669098721, -0.044098721}
| 2x-20i=8(4y)i | | 8x^2=5x-2 | | -0.05n+1.4=8.9 | | 3=-16x^2+90x-7 | | 2880+175.75w=6043.50 | | 4v-15=15 | | m^3-6m^2+32=0 | | 4(x+9)-30-2x=-18 | | 15+4y=7y | | 20*x=68.75 | | 0.05=0.05-0.15q | | 0.5(x+1)=0.1(x+2) | | X^2y+xy=1 | | 4x+4y+8= | | 2.3x-1.6=-2.2 | | 4.6E-9= | | 4x-2=8+6x | | 25*x=68.75 | | ln(x)=100 | | 0.7+0.8x=0.8 | | -7(-9+6x)=357 | | 4x+x-32=64-5x | | 7y-3y-11=61.72 | | N-2.50=7.50 | | 42n^2-306n+84=0 | | 2x-5x+x=5 | | 8x+7x-63=84-6x | | 3(1x+4)=9 | | x+.095x=50 | | 26-17x+2=-19x | | 40x=2 | | 20-x=30 |