If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying z2 + -4z + -8 = 0 Reorder the terms: -8 + -4z + z2 = 0 Solving -8 + -4z + z2 = 0 Solving for variable 'z'. Begin completing the square. Move the constant term to the right: Add '8' to each side of the equation. -8 + -4z + 8 + z2 = 0 + 8 Reorder the terms: -8 + 8 + -4z + z2 = 0 + 8 Combine like terms: -8 + 8 = 0 0 + -4z + z2 = 0 + 8 -4z + z2 = 0 + 8 Combine like terms: 0 + 8 = 8 -4z + z2 = 8 The z term is -4z. Take half its coefficient (-2). Square it (4) and add it to both sides. Add '4' to each side of the equation. -4z + 4 + z2 = 8 + 4 Reorder the terms: 4 + -4z + z2 = 8 + 4 Combine like terms: 8 + 4 = 12 4 + -4z + z2 = 12 Factor a perfect square on the left side: (z + -2)(z + -2) = 12 Calculate the square root of the right side: 3.464101615 Break this problem into two subproblems by setting (z + -2) equal to 3.464101615 and -3.464101615.Subproblem 1
z + -2 = 3.464101615 Simplifying z + -2 = 3.464101615 Reorder the terms: -2 + z = 3.464101615 Solving -2 + z = 3.464101615 Solving for variable 'z'. Move all terms containing z to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + z = 3.464101615 + 2 Combine like terms: -2 + 2 = 0 0 + z = 3.464101615 + 2 z = 3.464101615 + 2 Combine like terms: 3.464101615 + 2 = 5.464101615 z = 5.464101615 Simplifying z = 5.464101615Subproblem 2
z + -2 = -3.464101615 Simplifying z + -2 = -3.464101615 Reorder the terms: -2 + z = -3.464101615 Solving -2 + z = -3.464101615 Solving for variable 'z'. Move all terms containing z to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + z = -3.464101615 + 2 Combine like terms: -2 + 2 = 0 0 + z = -3.464101615 + 2 z = -3.464101615 + 2 Combine like terms: -3.464101615 + 2 = -1.464101615 z = -1.464101615 Simplifying z = -1.464101615Solution
The solution to the problem is based on the solutions from the subproblems. z = {5.464101615, -1.464101615}
| 4x-4=2x-34 | | y=-2(-3)-8 | | -10x^2+9x+9= | | 7/12x=35 | | 3x+7=-2-8 | | 2r-6=8 | | 4x^2-25x+25= | | (x-9)2=49 | | -3(5x+12)=-18x-15 | | -1924*x=-962 | | .05x+.04y=119 | | .05x+.04y=252 | | 0.2x^2+4x-6=0 | | -2x^2+20x-48= | | -2t+2x=9 | | 3(g-5)=2(q+5) | | 1547=1234+h | | 3ax^2-27a=0 | | a=b+bedforc | | 9-3y=-15 | | 20(x+.28)=23(x) | | y^2+15y+50=0 | | xy-2y^2+4x^2=66 | | y=7-2 | | 7(-7)-2y=-14 | | 7(-7)-2y=14 | | 3x+11=55 | | 7(-14)-2y=-14 | | -3862*x=-1931 | | 3375=2150+x | | 6x^2+16x+8/3x+2 | | x-2+x=22 |