If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 20 = 42x + 4.9x2 Solving 20 = 42x + 4.9x2 Solving for variable 'x'. Reorder the terms: 20 + -42x + -4.9x2 = 42x + -42x + 4.9x2 + -4.9x2 Combine like terms: 42x + -42x = 0 20 + -42x + -4.9x2 = 0 + 4.9x2 + -4.9x2 20 + -42x + -4.9x2 = 4.9x2 + -4.9x2 Combine like terms: 4.9x2 + -4.9x2 = 0.0 20 + -42x + -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 + 8.571428571x + x2 = 0 Move the constant term to the right: Add '4.081632653' to each side of the equation. -4.081632653 + 8.571428571x + 4.081632653 + x2 = 0 + 4.081632653 Reorder the terms: -4.081632653 + 4.081632653 + 8.571428571x + x2 = 0 + 4.081632653 Combine like terms: -4.081632653 + 4.081632653 = 0.000000000 0.000000000 + 8.571428571x + x2 = 0 + 4.081632653 8.571428571x + x2 = 0 + 4.081632653 Combine like terms: 0 + 4.081632653 = 4.081632653 8.571428571x + x2 = 4.081632653 The x term is 8.571428571x. Take half its coefficient (4.285714286). Square it (18.36734694) and add it to both sides. Add '18.36734694' to each side of the equation. 8.571428571x + 18.36734694 + x2 = 4.081632653 + 18.36734694 Reorder the terms: 18.36734694 + 8.571428571x + x2 = 4.081632653 + 18.36734694 Combine like terms: 4.081632653 + 18.36734694 = 22.448979593 18.36734694 + 8.571428571x + x2 = 22.448979593 Factor a perfect square on the left side: (x + 4.285714286)(x + 4.285714286) = 22.448979593 Calculate the square root of the right side: 4.738035415 Break this problem into two subproblems by setting (x + 4.285714286) equal to 4.738035415 and -4.738035415.Subproblem 1
x + 4.285714286 = 4.738035415 Simplifying x + 4.285714286 = 4.738035415 Reorder the terms: 4.285714286 + x = 4.738035415 Solving 4.285714286 + x = 4.738035415 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4.285714286' to each side of the equation. 4.285714286 + -4.285714286 + x = 4.738035415 + -4.285714286 Combine like terms: 4.285714286 + -4.285714286 = 0.000000000 0.000000000 + x = 4.738035415 + -4.285714286 x = 4.738035415 + -4.285714286 Combine like terms: 4.738035415 + -4.285714286 = 0.452321129 x = 0.452321129 Simplifying x = 0.452321129Subproblem 2
x + 4.285714286 = -4.738035415 Simplifying x + 4.285714286 = -4.738035415 Reorder the terms: 4.285714286 + x = -4.738035415 Solving 4.285714286 + x = -4.738035415 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4.285714286' to each side of the equation. 4.285714286 + -4.285714286 + x = -4.738035415 + -4.285714286 Combine like terms: 4.285714286 + -4.285714286 = 0.000000000 0.000000000 + x = -4.738035415 + -4.285714286 x = -4.738035415 + -4.285714286 Combine like terms: -4.738035415 + -4.285714286 = -9.023749701 x = -9.023749701 Simplifying x = -9.023749701Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.452321129, -9.023749701}
| 50+3n=250+10 | | (2a+3b)-c=n | | 2x+250=7x | | 13=9x+4 | | 40=6a+4 | | 17=-13-18 | | 26+9(4x-4)=10(2x-1) | | 17x-9x=-16 | | 2j=-14+-2 | | 2x+2-6x=10-4(x+2) | | -10-2x=17x+9 | | y-(-19)=43 | | x-35=-73 | | 6(y-9)=4y-36 | | 3(1[2u-3]1)-10u= | | 12d^6e^7= | | 8x+13=x-15 | | 4(r+2)-2r=8+r-3 | | 4x-2x+3-x=0 | | 0.3x^2+3x-1=y | | 7r+5-r= | | 65=350-20a | | -2b-3a= | | 5(1[2u-3]1)-12u= | | 3x^2-kx+3x+k=0 | | -16x^2+35=0 | | -7x+7=10x-5 | | 27x+5=29x-5 | | 2(-12-2)=-28 | | -2x/3+5/6=-5/6 | | 5u+20=60 | | 7m^6n^9= |