If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 20 = 4.9x2 + 15x Reorder the terms: 20 = 15x + 4.9x2 Solving 20 = 15x + 4.9x2 Solving for variable 'x'. Reorder the terms: 20 + -15x + -4.9x2 = 15x + -15x + 4.9x2 + -4.9x2 Combine like terms: 15x + -15x = 0 20 + -15x + -4.9x2 = 0 + 4.9x2 + -4.9x2 20 + -15x + -4.9x2 = 4.9x2 + -4.9x2 Combine like terms: 4.9x2 + -4.9x2 = 0.0 20 + -15x + -4.9x2 = 0.0 Begin completing the square. Divide all terms by -4.9 the coefficient of the squared term: Divide each side by '-4.9'. -4.081632653 + 3.06122449x + x2 = 0 Move the constant term to the right: Add '4.081632653' to each side of the equation. -4.081632653 + 3.06122449x + 4.081632653 + x2 = 0 + 4.081632653 Reorder the terms: -4.081632653 + 4.081632653 + 3.06122449x + x2 = 0 + 4.081632653 Combine like terms: -4.081632653 + 4.081632653 = 0.000000000 0.000000000 + 3.06122449x + x2 = 0 + 4.081632653 3.06122449x + x2 = 0 + 4.081632653 Combine like terms: 0 + 4.081632653 = 4.081632653 3.06122449x + x2 = 4.081632653 The x term is 3.06122449x. Take half its coefficient (1.530612245). Square it (2.342773845) and add it to both sides. Add '2.342773845' to each side of the equation. 3.06122449x + 2.342773845 + x2 = 4.081632653 + 2.342773845 Reorder the terms: 2.342773845 + 3.06122449x + x2 = 4.081632653 + 2.342773845 Combine like terms: 4.081632653 + 2.342773845 = 6.424406498 2.342773845 + 3.06122449x + x2 = 6.424406498 Factor a perfect square on the left side: (x + 1.530612245)(x + 1.530612245) = 6.424406498 Calculate the square root of the right side: 2.534641296 Break this problem into two subproblems by setting (x + 1.530612245) equal to 2.534641296 and -2.534641296.Subproblem 1
x + 1.530612245 = 2.534641296 Simplifying x + 1.530612245 = 2.534641296 Reorder the terms: 1.530612245 + x = 2.534641296 Solving 1.530612245 + x = 2.534641296 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.530612245' to each side of the equation. 1.530612245 + -1.530612245 + x = 2.534641296 + -1.530612245 Combine like terms: 1.530612245 + -1.530612245 = 0.000000000 0.000000000 + x = 2.534641296 + -1.530612245 x = 2.534641296 + -1.530612245 Combine like terms: 2.534641296 + -1.530612245 = 1.004029051 x = 1.004029051 Simplifying x = 1.004029051Subproblem 2
x + 1.530612245 = -2.534641296 Simplifying x + 1.530612245 = -2.534641296 Reorder the terms: 1.530612245 + x = -2.534641296 Solving 1.530612245 + x = -2.534641296 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.530612245' to each side of the equation. 1.530612245 + -1.530612245 + x = -2.534641296 + -1.530612245 Combine like terms: 1.530612245 + -1.530612245 = 0.000000000 0.000000000 + x = -2.534641296 + -1.530612245 x = -2.534641296 + -1.530612245 Combine like terms: -2.534641296 + -1.530612245 = -4.065253541 x = -4.065253541 Simplifying x = -4.065253541Solution
The solution to the problem is based on the solutions from the subproblems. x = {1.004029051, -4.065253541}
| X^2-2x=-7/2 | | x-15=26 | | za+b=3 | | 5/6*5/3 | | 7n^2+27n-4=0 | | 6p-2p=32 | | k-8/3=10 | | -3(6x+2)=192 | | 100=2(l+2w) | | 2l=100/4w | | 100=2l+4w | | 17b-66=10 | | 22.67=4g+3.55 | | -3-11q=-2q-1/2(4q-2) | | 400=2w*(50-2w) | | 3(-5x-6)=-18 | | 7x+2y=29 | | 4x+3=10+(3)(6+9) | | 1.36g-8=0.84 | | log[5](-7-4x)=1 | | -4(x-7)=20 | | 16/4=6x+4(-2x) | | (-4/5t+2/5)=2/3 | | 15+m=-2+3 | | 400=2wl | | n/8-7n/16=1/8 | | 4x+9x+13=39 | | 7(x-1)-(2-x)=4x+9 | | b/19-8b/19=63/19 | | 2(l+2w)=100 | | 9x^2+21x-20=0 | | 3+5x-6x=-2 |