If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying -2x2 + 16 = -7x Reorder the terms: 16 + -2x2 = -7x Solving 16 + -2x2 = -7x Solving for variable 'x'. Reorder the terms: 16 + 7x + -2x2 = -7x + 7x Combine like terms: -7x + 7x = 0 16 + 7x + -2x2 = 0 Begin completing the square. Divide all terms by -2 the coefficient of the squared term: Divide each side by '-2'. -8 + -3.5x + x2 = 0 Move the constant term to the right: Add '8' to each side of the equation. -8 + -3.5x + 8 + x2 = 0 + 8 Reorder the terms: -8 + 8 + -3.5x + x2 = 0 + 8 Combine like terms: -8 + 8 = 0 0 + -3.5x + x2 = 0 + 8 -3.5x + x2 = 0 + 8 Combine like terms: 0 + 8 = 8 -3.5x + x2 = 8 The x term is -3.5x. Take half its coefficient (-1.75). Square it (3.0625) and add it to both sides. Add '3.0625' to each side of the equation. -3.5x + 3.0625 + x2 = 8 + 3.0625 Reorder the terms: 3.0625 + -3.5x + x2 = 8 + 3.0625 Combine like terms: 8 + 3.0625 = 11.0625 3.0625 + -3.5x + x2 = 11.0625 Factor a perfect square on the left side: (x + -1.75)(x + -1.75) = 11.0625 Calculate the square root of the right side: 3.326033674 Break this problem into two subproblems by setting (x + -1.75) equal to 3.326033674 and -3.326033674.Subproblem 1
x + -1.75 = 3.326033674 Simplifying x + -1.75 = 3.326033674 Reorder the terms: -1.75 + x = 3.326033674 Solving -1.75 + x = 3.326033674 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.75' to each side of the equation. -1.75 + 1.75 + x = 3.326033674 + 1.75 Combine like terms: -1.75 + 1.75 = 0.00 0.00 + x = 3.326033674 + 1.75 x = 3.326033674 + 1.75 Combine like terms: 3.326033674 + 1.75 = 5.076033674 x = 5.076033674 Simplifying x = 5.076033674Subproblem 2
x + -1.75 = -3.326033674 Simplifying x + -1.75 = -3.326033674 Reorder the terms: -1.75 + x = -3.326033674 Solving -1.75 + x = -3.326033674 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.75' to each side of the equation. -1.75 + 1.75 + x = -3.326033674 + 1.75 Combine like terms: -1.75 + 1.75 = 0.00 0.00 + x = -3.326033674 + 1.75 x = -3.326033674 + 1.75 Combine like terms: -3.326033674 + 1.75 = -1.576033674 x = -1.576033674 Simplifying x = -1.576033674Solution
The solution to the problem is based on the solutions from the subproblems. x = {5.076033674, -1.576033674}
| 6+2w=w-6 | | -2x-80=-x^2 | | x+(-1)=221+2x | | 15x-15x-30=0 | | 2a+9=7 | | -6x-18=6 | | 9n+10=-17 | | 15+2n=8+3n | | 12=-x+1 | | -7x-15=34 | | (.25)16+30=x | | x^2-9=9 | | 5*5-6=x | | K+3K+32=27+2+5K | | 3y+3=-36 | | .50(3*2+68)=x | | 6(3*64-8*4)=x | | 12-3y=52+5 | | 5a=35 | | 29-x=13 | | r=-3 | | 17x-12=114+3x | | 5-7x=-15-3x | | -0.25y=16 | | x-2y+5=8 | | 8x^3+10x^2-5x-3=0 | | X+(-6)=9 | | -10p+9=12 | | 14c+35= | | 68-4*(3-1)3=c | | 6b+8= | | x^2+4bx+2b=0 |