If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 4x2 + -1x = 21 Reorder the terms: -1x + 4x2 = 21 Solving -1x + 4x2 = 21 Solving for variable 'x'. Reorder the terms: -21 + -1x + 4x2 = 21 + -21 Combine like terms: 21 + -21 = 0 -21 + -1x + 4x2 = 0 Begin completing the square. Divide all terms by 4 the coefficient of the squared term: Divide each side by '4'. -5.25 + -0.25x + x2 = 0 Move the constant term to the right: Add '5.25' to each side of the equation. -5.25 + -0.25x + 5.25 + x2 = 0 + 5.25 Reorder the terms: -5.25 + 5.25 + -0.25x + x2 = 0 + 5.25 Combine like terms: -5.25 + 5.25 = 0.00 0.00 + -0.25x + x2 = 0 + 5.25 -0.25x + x2 = 0 + 5.25 Combine like terms: 0 + 5.25 = 5.25 -0.25x + x2 = 5.25 The x term is -0.25x. Take half its coefficient (-0.125). Square it (0.015625) and add it to both sides. Add '0.015625' to each side of the equation. -0.25x + 0.015625 + x2 = 5.25 + 0.015625 Reorder the terms: 0.015625 + -0.25x + x2 = 5.25 + 0.015625 Combine like terms: 5.25 + 0.015625 = 5.265625 0.015625 + -0.25x + x2 = 5.265625 Factor a perfect square on the left side: (x + -0.125)(x + -0.125) = 5.265625 Calculate the square root of the right side: 2.294694969 Break this problem into two subproblems by setting (x + -0.125) equal to 2.294694969 and -2.294694969.Subproblem 1
x + -0.125 = 2.294694969 Simplifying x + -0.125 = 2.294694969 Reorder the terms: -0.125 + x = 2.294694969 Solving -0.125 + x = 2.294694969 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.125' to each side of the equation. -0.125 + 0.125 + x = 2.294694969 + 0.125 Combine like terms: -0.125 + 0.125 = 0.000 0.000 + x = 2.294694969 + 0.125 x = 2.294694969 + 0.125 Combine like terms: 2.294694969 + 0.125 = 2.419694969 x = 2.419694969 Simplifying x = 2.419694969Subproblem 2
x + -0.125 = -2.294694969 Simplifying x + -0.125 = -2.294694969 Reorder the terms: -0.125 + x = -2.294694969 Solving -0.125 + x = -2.294694969 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.125' to each side of the equation. -0.125 + 0.125 + x = -2.294694969 + 0.125 Combine like terms: -0.125 + 0.125 = 0.000 0.000 + x = -2.294694969 + 0.125 x = -2.294694969 + 0.125 Combine like terms: -2.294694969 + 0.125 = -2.169694969 x = -2.169694969 Simplifying x = -2.169694969Solution
The solution to the problem is based on the solutions from the subproblems. x = {2.419694969, -2.169694969}
| kx*4-2kx*2+k*2-k-6=0 | | 15/n-3=5/n-3-8 | | 5z=7+4z | | 2n^2-5n-102=0 | | 16sinx^2=1 | | 8j-6=10j | | 16sinx^2=0 | | -2q=-10+8q | | 8u=2u+6u | | 15=9+3h | | 4x+6=5x-6 | | 16sin^2x=0 | | 3x+13=93+5x | | 5x+4-(-2)=4-3x-12-(-4) | | 4sinx^2=0 | | 16+x+2x=75 | | X/y=-13/23 | | N=n-18 | | 3k+3=9 | | 3=3d-3 | | -17+53=-4(x+5) | | K^2+3=7 | | 16+x+x=75 | | -3/17p=-2 | | 8m^2=432 | | -0.8x+7.93=-0.3x+3.43 | | 20w(w-18)= | | -x+7=-27 | | c=30.25h+245 | | 2x^2y=72 | | 6(n+20)=n+5 | | 15-52*4+22= |