If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 84 = (x + -4) * x Reorder the terms: 84 = (-4 + x) * x Reorder the terms for easier multiplication: 84 = x(-4 + x) 84 = (-4 * x + x * x) 84 = (-4x + x2) Solving 84 = -4x + x2 Solving for variable 'x'. Reorder the terms: 84 + 4x + -1x2 = -4x + 4x + x2 + -1x2 Combine like terms: -4x + 4x = 0 84 + 4x + -1x2 = 0 + x2 + -1x2 84 + 4x + -1x2 = x2 + -1x2 Combine like terms: x2 + -1x2 = 0 84 + 4x + -1x2 = 0 Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. -84 + -4x + x2 = 0 Move the constant term to the right: Add '84' to each side of the equation. -84 + -4x + 84 + x2 = 0 + 84 Reorder the terms: -84 + 84 + -4x + x2 = 0 + 84 Combine like terms: -84 + 84 = 0 0 + -4x + x2 = 0 + 84 -4x + x2 = 0 + 84 Combine like terms: 0 + 84 = 84 -4x + x2 = 84 The x term is -4x. Take half its coefficient (-2). Square it (4) and add it to both sides. Add '4' to each side of the equation. -4x + 4 + x2 = 84 + 4 Reorder the terms: 4 + -4x + x2 = 84 + 4 Combine like terms: 84 + 4 = 88 4 + -4x + x2 = 88 Factor a perfect square on the left side: (x + -2)(x + -2) = 88 Calculate the square root of the right side: 9.38083152 Break this problem into two subproblems by setting (x + -2) equal to 9.38083152 and -9.38083152.Subproblem 1
x + -2 = 9.38083152 Simplifying x + -2 = 9.38083152 Reorder the terms: -2 + x = 9.38083152 Solving -2 + x = 9.38083152 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + x = 9.38083152 + 2 Combine like terms: -2 + 2 = 0 0 + x = 9.38083152 + 2 x = 9.38083152 + 2 Combine like terms: 9.38083152 + 2 = 11.38083152 x = 11.38083152 Simplifying x = 11.38083152Subproblem 2
x + -2 = -9.38083152 Simplifying x + -2 = -9.38083152 Reorder the terms: -2 + x = -9.38083152 Solving -2 + x = -9.38083152 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + x = -9.38083152 + 2 Combine like terms: -2 + 2 = 0 0 + x = -9.38083152 + 2 x = -9.38083152 + 2 Combine like terms: -9.38083152 + 2 = -7.38083152 x = -7.38083152 Simplifying x = -7.38083152Solution
The solution to the problem is based on the solutions from the subproblems. x = {11.38083152, -7.38083152}
| z^2-2(4-2i)z-16i=0 | | 0.1x=8+0.1x | | (x^2)-(3/4)x-(27/64)=0 | | 126=(x+2)2 | | 320x+260(19-x)=5600 | | 29+x-x-36+3x=843 | | 7-6x+9+5x+2x-5=6+4.3 | | -10.2=x/-8.4 | | s^2=s^2 | | 10+6X=-8 | | x/2-4=9 | | 1/5-2 | | 1/7-2 | | (2y-17)+47=180 | | 7/16-13/32 | | x+x+300000=600000000 | | 3/4x=2x-5 | | 9-3y=8-4y | | (2y-17)+x=180 | | x+x+4=274 | | 13-8x=-103-43x | | 1/3(x-9)=3x-2(x-1)+19/3 | | 16y=-8x-32 | | (1/3)(x+7)-(1/2)(x+1)=4 | | (5x^2)=7-5x | | y/(y^2-9)+(y-3)/(y+3)-(2y)/(y-3) | | 5/12(q-7)=6 | | y=x^2+10x-28 | | 3.8/5.2=7.3/x | | 5/11(q-7)=6 | | x^2-10x+21/98-2x^2 | | 9b^2+42b+49=0 |